1.
Geographic coordinate system
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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
2.
Patapsco River
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The Patapsco River is a 39-mile-long river in central Maryland which flows into the Chesapeake Bay. The rivers tidal portion forms the harbor for the city of Baltimore, with its South Branch, the Patapsco forms the northern border of Howard County, Maryland. The name Patapsco is derived from the Algonquian pota-psk-ut, which translates to backwater or tide covered with froth, the Patapsco proper begins at the confluence of the North and South Branches, near Marriottsville, approximately 15 miles west of downtown Baltimore. The 19. 4-mile-long South Branch rises further west at Parrs Spring, where Howard County, Carroll, Frederick, the North Branch flows 20.9 miles southward from its origins in Carroll County. Through most of its length, the Patapsco is a minor river, the last 10 miles, however, form a large tidal estuary inlet of Chesapeake Bay. The inner part of this provides the harbor of Baltimore, composed of the Northwest Harbor. The Patapsco estuary is south of the Back River and north of the Magothy River, the Patapsco has a watershed area of 680 square miles, or 632 square miles of land. Thus, its watershed area is 7% water. Patapsco Valley State Park is adjacent to 32 miles of the Patapsco and its branches, the river cuts a gorge 100–200 feet deep within the park, which features rocky cliffs and tributary waterfalls. Liberty Dam and its reservoir, located on the North Branch, is a component of the Baltimore city water system. Besides Baltimore, the river flows through Ellicott City and Elkridge. John Smith was the first European to explore the river noting it on his 1612 map as the Bolus River, the Red river, was named after the clay color, and is considered the old Bolus, as other branches were also labelled Bolus on maps. As the river was not navigable beyond Elkridge, it was not a path of commerce with only one ship listed as serving the northern branch. The Patapsco valley was used as the route of the Baltimore and Ohio Railroads original main line west constructed from 1829 onwards, many old railroad bridges were constructed in the valley, most notably the Thomas Viaduct and the Patterson Viaduct, of which ruins remain. Flour mills and a dam were formerly powered by the river. The valley is prone to flooding, though at long intervals, in 1972 as a result of rainfall from the remnants of Hurricane Agnes, in which Ellicott City and the Old Main Line sustained serious damage. In July 2016 a historic flood ravaged Main Street - leaving two dead, the mouth of the Patapsco River forms Baltimore harbor, the site of the Battle of Baltimore during the War of 1812. This is where Francis Scott Key, while aboard a British ship, wrote The Star-Spangled Banner, today, a red, white, and blue buoy marks the spot where the HMS Tonnant was anchored
3.
Elkridge, Maryland
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Elkridge is an unincorporated community and census-designated place in Howard County, Maryland, United States. The population was 15,593 at the 2010 census, founded early in the 18th century, Elkridge is located at the confluence of three counties, the other two being Anne Arundel and Baltimore counties. Elkridge qualifies as the oldest settlement in its present county, when Howard was a part of Anne Arundel County and its location on the Patapsco River was a key element in its growth. The Maryland General Assembly elected a law to erect a 30-acre, in 1738 an attempt to formalize the town failed with the death of the commissioners before passage. In 1750 a second attempt to formalize the town was attempted around the lands of Phillip Hammond, by comparison, Baltimore Town consisted of only 25 dwellings at that time. A third petition was filed in 1762, the settlement was founded as a place where planters, who each had a wharf along the river, could bring their tobacco crop to be loaded on English trading ships. Later, Elkridge Landing was built as the dock for the community. The millrace that fed water to the furnace was filled in in the 1920s to create the current Race Road, the Hockley Forge and Mill were created upstream in 1760. In 1781, Lafayette camped light infantry at Elkridge Landing en route to Virginia during the Revolutionary war, in 1825, Jansen Town burned, taking out all of the oldest buildings at the Landing and 9 out of 10 houses in the village. The same year, on October 12,1825, the Elkridge Landing postal stop was created, Elkridge has historic churches, including Melville Church on Furnace Avenue. Its original building was the first Methodist church built and was visited on the rides of Francis Asbury. Saint Augustine Church, on Old Washington Road, was built in 1845, Elkridge had a rich history of industries, including pig-iron forging, basket weaving, paper, cotton and grist milling, as well as employment from the B&O Railroad. The Thomas Viaduct, located over Levering Avenue at the entrance to the Patapsco Valley State Park, is the oldest multiple-arched curved stone railroad bridge in the world, built in 1833, its architect was Benjamin Latrobe, Jr. The B&O first used horse-drawn coaches in relays, hence Relay Station was added, the viaduct also carried the Tom Thumb, and the first telegraph message from Washington, D. C. stating What hath God wrought. was wired across. Elkridge did not escape the Civil War, some of these families had slaves. Their estate cottages were built along the top of the Lawyers Hill, including along Old Lawyers Hill Road and this community hall, built in 1871, was a neutral meeting place for entertainments for Northern and Southern sympathizers of the neighborhood and owned by them as stockholders. Neighbors did not betray neighbors and each protected others property from advancing troops, many homes remain, while others burned and have not been rebuilt, such Fairie Knowe in 1850 and 1900. The Lawyers Hill Historic District was listed on the National Register of Historic Places in 1993, the Washington Turnpike Road Company built what is now Washington Boulevard between 1796 and 1812, creating a major north–south land route that is now U. S. Route 1
4.
CSX Transportation
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CSX Transportation is a Class I railroad in the United States. The main subsidiary of the CSX Corporation, the railroad is headquartered in Jacksonville, Florida, CSX operates one of the three Class I railroads serving most of the East Coast, the other two being the Norfolk Southern Railway and Canadian Pacific Railway. It also serves the Canadian provinces of Ontario and Quebec, together CSX and Norfolk Southern Railway have a duopoly over all east-west freight rail traffic east of the Mississippi River. As of October 1,2014, CSXs total public stock value was slightly over $32 billion, CSX Transportation was formed on July 1,1986, by combining the Chessie System and Seaboard System Railroad. The origin of the Chessie System was the former Chesapeake & Ohio Railway, which had merged with the Baltimore & Ohio Railroad, on June 6,1998, the STB approved the CSX–NS application and set August 22,1998, as the effective date of its decision. CSX acquired 42 percent of Conrails assets, and NS received the remaining 58 percent, as a result of the transaction, CSXs rail operations grew to include some 3,800 miles of the Conrail system. CSX began operating its trains on its portion of the Conrail network on June 1,1999, CSX now serves much of the eastern U. S. with a few routes into nearby Canadian cities. The name came about during merger talks between Chessie System, Inc. and Seaboard System Railroad, Inc. commonly called Chessie, the company chairmen said it was important for the new name to include neither of those names because it was a partnership. Employees were asked for suggestions, most of which consisted of combinations of the initials, at the same time a temporary shorthand name was needed for discussions with the Interstate Commerce Commission. CSC was chosen but belonged to a company in Virginia. The lawyers decided to use CSX, and the name stuck, in the public announcement, it was said that CSX is singularly appropriate. C can stand for Chessie, S for Seaboard, and X, however, in the August 9,2016 article on the Railway Age website stated that. And the X was for Consolidated, the T had to be added to CSX when used as a reporting mark because reporting marks that end in X means that the car is owned by a leasing company or private car owner. Its current slogan, How Tomorrow Moves, appeared in 2008, in 2014 Canadian Pacific Railway approached CSX with an offer to merge the two companies, but CSX declined and in 2015 Canadian Pacific made an attempt to purchase and merge with Norfolk Southern. In 2017 CSX announced Hunter Harrison as its new chief executive, CSX added 5 new directors to their board, including Harrison and Mantle Ridge founder Paul Hilal. Mantle Ridge owns 4.9 percent of CSX, CSX operates two regions of five divisions each, the Northern, based in Calumet City, Illinois, and Southern, based in Jacksonville, Florida. The CEO of CSX is Hunter Harrison as of Feb 2017, o823, Q740 and Q741, Q743, and Q745—which consists of Tropicana cars that carry fresh orange juice between Bradenton, Florida, and the Greenville section of Jersey City, New Jersey. The train also runs from Bradenton to Fort Pierce, Florida, in the 21st century, the Juice Train has been studied as a model of efficient rail transportation that can compete with trucks and other modes in the perishable-goods trade
5.
National Register of Historic Places
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The National Register of Historic Places is the United States federal governments official list of districts, sites, buildings, structures, and objects deemed worthy of preservation. The passage of the National Historic Preservation Act in 1966 established the National Register, of the more than one million properties on the National Register,80,000 are listed individually. The remainder are contributing resources within historic districts, each year approximately 30,000 properties are added to the National Register as part of districts or by individual listings. For most of its history the National Register has been administered by the National Park Service and its goals are to help property owners and interest groups, such as the National Trust for Historic Preservation, coordinate, identify, and protect historic sites in the United States. While National Register listings are mostly symbolic, their recognition of significance provides some financial incentive to owners of listed properties, protection of the property is not guaranteed. During the nomination process, the property is evaluated in terms of the four criteria for inclusion on the National Register of Historic Places, the application of those criteria has been the subject of criticism by academics of history and preservation, as well as the public and politicians. Occasionally, historic sites outside the proper, but associated with the United States are also listed. Properties can be nominated in a variety of forms, including individual properties, historic districts, the Register categorizes general listings into one of five types of properties, district, site, structure, building, or object. National Register Historic Districts are defined geographical areas consisting of contributing and non-contributing properties, some properties are added automatically to the National Register when they become administered by the National Park Service. These include National Historic Landmarks, National Historic Sites, National Historical Parks, National Military Parks/Battlefields, National Memorials, on October 15,1966, the Historic Preservation Act created the National Register of Historic Places and the corresponding State Historic Preservation Offices. Initially, the National Register consisted of the National Historic Landmarks designated before the Registers creation, approval of the act, which was amended in 1980 and 1992, represented the first time the United States had a broad-based historic preservation policy. To administer the newly created National Register of Historic Places, the National Park Service of the U. S. Department of the Interior, hartzog, Jr. established an administrative division named the Office of Archeology and Historic Preservation. Hartzog charged OAHP with creating the National Register program mandated by the 1966 law, ernest Connally was the Offices first director. Within OAHP new divisions were created to deal with the National Register, the first official Keeper of the Register was William J. Murtagh, an architectural historian. During the Registers earliest years in the late 1960s and early 1970s, organization was lax and SHPOs were small, understaffed, and underfunded. A few years later in 1979, the NPS history programs affiliated with both the U. S. National Parks system and the National Register were categorized formally into two Assistant Directorates. Established were the Assistant Directorate for Archeology and Historic Preservation and the Assistant Directorate for Park Historic Preservation, from 1978 until 1981, the main agency for the National Register was the Heritage Conservation and Recreation Service of the United States Department of the Interior. In February 1983, the two assistant directorates were merged to promote efficiency and recognize the interdependency of their programs, jerry L. Rogers was selected to direct this newly merged associate directorate
6.
Arch bridge
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An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side, a viaduct may be made from a series of arches, although other more economical structures are typically used today. Possibly the oldest existing bridge is the Mycenaean Arkadiko bridge in Greece from about 1300 BC. The stone corbel arch bridge is used by the local populace. The well-preserved Hellenistic Eleutherna Bridge has a corbel arch. The 4th century BC Rhodes Footbridge rests on an early voussoir arch, a more complete survey by the Italian scholar Vittorio Galliazzo found 931 Roman bridges, mostly of stone, in as many as 26 different countries. Roman arch bridges were usually semicircular, although a number were segmental arch bridges, generally, Roman bridges featured wedge-shaped primary arch stones of the same in size and shape. The Romans built both single spans and lengthy multiple arch aqueducts, such as the Pont du Gard and Segovia Aqueduct. Their bridges featured from an early time onwards flood openings in the piers, e. g. in the Pons Fabricius in Rome, Roman engineers were the first and until the industrial revolution the only ones to construct bridges with concrete, which they called Opus caementicium. The outside was covered with brick or ashlar, as in the Alcántara bridge. The Romans also introduced segmental arch bridges into bridge construction, trajans bridge over the Danube featured open-spandrel segmental arches made of wood. This was to be the longest arch bridge for a thousand years both in terms of overall and individual span length, while the longest extant Roman bridge is the 790 m long Puente Romano at Mérida. The late Roman Karamagara Bridge in Cappadocia may represent the earliest surviving bridge featuring a pointed arch, in medieval Europe, bridge builders improved on the Roman structures by using narrower piers, thinner arch barrels and lower span-rise ratios on bridges. Gothic pointed arches were introduced, reducing lateral thrust. The 14th century in particular saw bridge building reaching new heights, the bridge at Trezzo sullAdda, destroyed in the 15th century, even featured a span length of 72 m, not matched until 1796. Constructions such as the acclaimed Florentine segmental arch bridge Ponte Vecchio combined sound engineering with aesthetical appeal, the three elegant arches of the Renaissance Ponte Santa Trinita constitute the oldest elliptic arch bridge worldwide. In China, the oldest existing bridge is the Zhaozhou Bridge of 605 AD. The Zhaozhou Bridge, with a length of 167 feet and span of 123 feet, is the worlds first wholly stone open-spandrel segmental arch bridge, Bridges with perforated spandrels can be found worldwide, such as in China
7.
Benjamin Henry Latrobe II
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Benjamin Henry Latrobe, II was an American civil engineer, best known for his railway bridges, and a railway executive. The fire destroyed the Capitol and the Presidents House, along with most of the public buildings in the two-decade old national capital. He was also responsible for the construction of the first Roman Catholic cathedral built in the United States and he married Maria Eleanor Ellen Hazlehurst on March 12,1833. Charles Hazelhurst Latrobe, a son, became a Confederate veteran, around 1820, Latrobe worked with his father to establish a water supply for New Orleans, Louisiana. He was hired on a crew for the Baltimore and Ohio Railroad in the summer of 1830. In 1832, as assistant engineer, Latrobe surveyed and planned the route for the Washington Branch, for this route between Baltimore and Washington, D. C. he designed the Thomas Viaduct, which became the largest bridge in the United States when completed in 1835. The viaduct spans the Patapsco River between Relay and Elkridge, Maryland and he served as the project engineer and worked closely with the railroads construction chief, Caspar Wever. Nicknamed Latrobes Folly by those who doubted the massive structure could support itself, in 1835, he was appointed the chief engineer for the Baltimore and Port Deposit Railroad Company, which would help build the first rail link between Philadelphia and Baltimore. Latrobe returned to the B&O in 1836, along with Louis Wernwag, he designed the railroads first bridge across the Potomac River at Harpers Ferry, West Virginia, which opened in 1837. In 1842, the B&O appointed him as Chief Engineer, succeeding his boss and he served in the position for 22 years. He was appointed to the concurrent position of superintendent of the B&O in 1847. He later became president of the Pittsburgh and Connellsville Railroad, part of the B&Os Pittsburgh District. In the 1860s, Latrobe was an engineer for the Troy and Greenfield Railroad. Latrobe died in Baltimore on October 19,1878, family tree in Genealogisches Handbuch der baltischen Ritterschaften, Estland, Görlitz 1930
8.
National Historic Landmark
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A National Historic Landmark is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance. Of over 85,000 places listed on the countrys National Register of Historic Places, a National Historic Landmark District may include contributing properties that are buildings, structures, sites or objects, and it may include non-contributing properties. Contributing properties may or may not also be separately listed, prior to 1935, efforts to preserve cultural heritage of national importance were made by piecemeal efforts of the United States Congress. The first National Historic Site designation was made for the Salem Maritime National Historic Site on March 17,1938. In 1960, the National Park Service took on the administration of the data gathered under this legislation. Because listings often triggered local preservation laws, legislation in 1980 amended the procedures to require owner agreement to the designations. On October 9,1960,92 properties were announced as designated NHLs by Secretary of the Interior Fred A. Seaton, more than 2,500 NHLs have been designated. Most, but not all, are in the United States, there are NHLs in all 50 states and the District of Columbia. Three states account for nearly 25 percent of the nations NHLs, three cities within these states all separately have more NHLs than 40 of the 50 states. In fact, New York City alone has more NHLs than all but five states, Virginia, California, Pennsylvania, Massachusetts, there are 74 NHLs in the District of Columbia. Some NHLs are in U. S. commonwealths and territories, associated states, and foreign states. There are 15 in Puerto Rico, the Virgin Islands, and other U. S. commonwealths and territories,5 in U. S. -associated states such as Micronesia, over 100 ships or shipwrecks have been designated as NHLs. About half of the National Historic Landmarks are privately owned, the National Historic Landmarks Program relies on suggestions for new designations from the National Park Service, which also assists in maintaining the landmarks. A friends group of owners and managers, the National Historic Landmark Stewards Association, works to preserve, protect, if not already listed on the National Register of Historic Places, an NHL is automatically added to the Register upon designation. About three percent of Register listings are NHLs, american Water Landmark List of U. S
9.
Arbutus, Maryland
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Arbutus is an unincorporated community and a census-designated place in Baltimore County, Maryland, United States. The population was 20,483 at the 2010 census, the census area also contains the communities of Halethorpe and Relay, in which all three names were used during the 1960 census when the area had a population of 22,402. Residents of Arbutus are often called Arbutians, the Thomas Viaduct railroad bridge over the Patapsco River was listed on the National Register of Historic Places in 1966. Arbutus is located at 39°14′40″N 76°41′38″W, according to the United States Census Bureau, the CDP has a total area of 6.5 square miles, all of it land. Herbert Run, a stream, runs through Arbutus and surrounding areas, as of the 2010 census Arbutus had a population of 20,483. As of the census of 2000, there were 20,116 people,8,120 households, the population density was 3,093.8 people per square mile. There were 8,380 housing units at a density of 1,288.8 per square mile. The racial makeup of the CDP was 85. 21% White,6. 27% African American,0. 28% Native American,6. 10% Asian,0. 02% Pacific Islander,0. 48% from other races, and 1. 63% from two or more races. Hispanic or Latino of any race were 1. 53% of the population,27. 6% of all households were made up of individuals and 9. 6% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the family size was 2.99. In the CDP, the population was out with 22. 2% under the age of 18,8. 5% from 18 to 24,33. 5% from 25 to 44,21. 3% from 45 to 64. The median age was 37 years, for every 100 females there were 93.8 males. For every 100 females age 18 and over, there were 91.2 males, the median income for a household in the CDP was $47,792, and the median income for a family was $54,003. Males had an income of $37,766 versus $29,129 for females. The per capita income for the CDP was $22,456, about 4. 5% of families and 6. 8% of the population were below the poverty line, including 6. 5% of those under age 18 and 6. 1% of those age 65 or over. Fire and emergency services are provided by the Arbutus Volunteer Fire Department Baltimore County Station 35. This station provides fire protection, heavy rescue, swift water rescue, and paramedic-level emergency medical services to the citizens of Arbutus, mutual aid is provided by the surrounding Baltimore County stations as well as the Baltimore City and Howard County fire departments. Police protection is provided mainly by the Baltimore County Police Department, additional police service is provided by the Baltimore County Sheriffs Office, UMBC Police, Maryland State Police, and the Maryland Transportation Authority Police
10.
Baltimore and Ohio Railroad
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The Baltimore and Ohio Railroad is one of the oldest railroads in the United States and the first common carrier railroad. At first this railroad was located entirely in the state of Maryland with a line from the port of Baltimore west to Sandy Hook. At this point to continue westward, it had to cross into Virginia over the Potomac River, adjacent to the confluence of the Potomac, from there it was extended to the Ohio River at Wheeling and a few years later also to Parkersburg, West Virginia. It is now part of the CSX Transportation network, and includes the oldest operational railroad bridge in the USA, the B&O also included the Leiper Railroad, the first permanent horse-drawn railroad in the U. S. In later years, B&O advertising carried the motto, Linking 13 Great States with the Nation, the B&O Warehouse at the Camden Yards rail junction in Baltimore now dominates the view over the right-field wall at the Baltimore Orioles current home, Oriole Park at Camden Yards. At the end of 1970 B&O operated 5552 miles of road and 10449 miles of track, not including the Staten Island Rapid Transit or the Reading and its subsidiaries. The fast-growing port city of Baltimore, Maryland faced economic stagnation unless it opened routes to the western states, as New York had done with the Erie Canal in 1820. In 1827, twenty-five merchants and bankers studied the best means of restoring that portion of the Western trade which has recently been diverted from it by the introduction of steam navigation and their answer was to build a railroad—one of the first commercial lines in the world. Two men — Philip E. Thomas and George Brown — were the pioneers of the railroad and they spent the year 1826 investigating railway enterprises in England, which were at that time being tested in a comprehensive fashion as commercial ventures. Their investigation completed, they held a meeting on February 12,1827, including about twenty-five citizens. Thomas was elected as the first president and Brown the treasurer, the capital of the proposed company was fixed at five million dollars, but the B&O was initially capitalized in 1827 with a three million dollar issue of stock. Virtually every citizen of Baltimore owned a share, as the offering was oversubscribed, construction began on July 4,1828, when Charles Carroll of Carrollton did the groundbreaking. The initial tracks were built with granite stringers topped by iron rails. The first section, from Baltimore west to Ellicotts Mills, opened on May 24,1830. Developers decided to follow the Patapsco River to a point near Parrs Ridge, a later compromise allowed the two companies to share the right of way. The State of Maryland granted the B&O a charter to build a line from Baltimore to Washington, D. C. in 1831, and the Washington Branch was opened in 1835. This line joined to the mainline at Relay, Maryland, crossing the Patapsco on the Thomas Viaduct. This line was funded by the state, and was operated separately until the 1870s
11.
Philip E. Thomas
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Philip Evan Thomas was the first president of the Baltimore and Ohio Railroad from 1827 to 1836. He has been referred to as The Father of American Railways, the Thomas Viaduct bridge in Relay, Maryland, was named after him. Philip was born in Mount Radnor, Colesville, Maryland, the son of Evan. His mother was the daughter of Gerard Hopkins whose family include Samuel Hopkins and his son Johns Hopkins and he married Elizabeth George of Kent County, Maryland, and worked in the hardware business in Baltimore under Thomas Poultney, his brother-in-law. He commenced his own business in 1800 with Evan Thomas, Jr. his younger brother and he became active in both the Baltimore community and the banking business. He served as a cashier at Mechanics Bank, became the first president of the Mechanical Fire Company, was the founder of the Baltimore Library Company, Thomas donated $25,000 to the State for the Washington Monument. A prominent figure in the Society of Friends from 1821-1832, he was also served chairman of the Societys Indian Affairs Committee and his efforts to help Native Americans earned him the title of Hai-wa-nob from the Swan tribe of the Seneca people. Thomas was the representative to Washington for the Six Nations of Indians and he died in 1861 while living with his daughter in Yonkers, New York. In 1825, Thomas became involved with the early canal enterprises in New England and he became disillusioned with the project after realizing that it would not benefit Baltimore and he resigned his commission in 1828. They obtained corporate charters from the Maryland and Virginia legislatures in 1827, with Thomas as president, George Brown as treasurer and Alexander Brown as one of several other investors, Thomas founded a railroad to compete with the canals. Construction of the B&O Railroad began in Baltimore in 1828, the B&O was the first common carrier railroad in the United States. In building the new railroad, Thomas and the B&O encountered many obstacles - political, legal, financial and technical -, the line reached the Potomac River across from Harpers Ferry, Virginia in 1834. The B&O also completed a line from Baltimore to Washington. By 1836, Thomas was in health, and he resigned from the B&O presidency
12.
Masonry
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Masonry is the building of structures from individual units, which are often laid in and bound together by mortar, the term masonry can also refer to the units themselves. The common materials of construction are brick, building stone such as marble, granite, travertine, and limestone, cast stone, concrete block, glass block. Masonry is generally a durable form of construction. However, the used, the quality of the mortar and workmanship. A person who constructs masonry is called a mason or bricklayer, Masonry is commonly used for walls and buildings. Brick and concrete block are the most common types of masonry in use in industrialized nations, Concrete blocks, especially those with hollow cores, offer various possibilities in masonry construction. They generally provide great strength, and are best suited to structures with light transverse loading when the cores remain unfilled. Filling some or all of the cores with concrete or concrete with steel reinforcement offers much greater tensile, the use of material such as bricks and stones can increase the thermal mass of a building and can protect the building from fire. Masonry walls are resistant to projectiles, such as debris from hurricanes or tornadoes. Extreme weather, under circumstances, can cause degradation of masonry due to expansion. Masonry tends to be heavy and must be built upon a foundation, such as reinforced concrete. Other than concrete, masonry construction does not lend well to mechanization. Masonry consists of components and has a low tolerance to oscillation as compared to other materials such as reinforced concrete, plastics, wood. Masonry has high compressive strength under vertical loads but has low tensile strength unless reinforced, the tensile strength of masonry walls can be increased by thickening the wall, or by building masonry piers at intervals. Where practical, steel reinforcements such as windposts can be added, a masonry veneer wall consists of masonry units, usually clay-based bricks, installed on one or both sides of a structurally independent wall usually constructed of wood or masonry. In this context the brick masonry is primarily decorative, not structural, the brick veneer is generally connected to the structural wall by brick ties. There is typically an air gap between the veneer and the structural wall. Concrete blocks, real and cultured stones, and veneer adobe are sometimes used in a very similar veneer fashion
13.
Rail transport
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Rail transport is a means of conveyance of passengers and goods on wheeled vehicles running on rails, also known as tracks. It is also referred to as train transport. In contrast to road transport, where vehicles run on a flat surface. Tracks usually consist of rails, installed on ties and ballast, on which the rolling stock, usually fitted with metal wheels. Other variations are possible, such as slab track, where the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a transport system generally encounters lower frictional resistance than road vehicles, so passenger. The operation is carried out by a company, providing transport between train stations or freight customer facilities. Power is provided by locomotives which either draw electric power from a railway system or produce their own power. Most tracks are accompanied by a signalling system, Railways are a safe land transport system when compared to other forms of transport. The oldest, man-hauled railways date back to the 6th century BC, with Periander, one of the Seven Sages of Greece, Rail transport blossomed after the British development of the steam locomotive as a viable source of power in the 19th centuries. With steam engines, one could construct mainline railways, which were a key component of the Industrial Revolution, also, railways reduced the costs of shipping, and allowed for fewer lost goods, compared with water transport, which faced occasional sinking of ships. The change from canals to railways allowed for markets in which prices varied very little from city to city. In the 1880s, electrified trains were introduced, and also the first tramways, starting during the 1940s, the non-electrified railways in most countries had their steam locomotives replaced by diesel-electric locomotives, with the process being almost complete by 2000. During the 1960s, electrified high-speed railway systems were introduced in Japan, other forms of guided ground transport outside the traditional railway definitions, such as monorail or maglev, have been tried but have seen limited use. The history of the growth, decline and restoration to use of transport can be divided up into several discrete periods defined by the principal means of motive power used. The earliest evidence of a railway was a 6-kilometre Diolkos wagonway, trucks pushed by slaves ran in grooves in limestone, which provided the track element. The Diolkos operated for over 600 years, Railways began reappearing in Europe after the Dark Ages. The earliest known record of a railway in Europe from this period is a window in the Minster of Freiburg im Breisgau in Germany
14.
Bridge
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A bridge is a structure built to span physical obstacles without closing the way underneath such as a body of water, valley, or road, for the purpose of providing passage over the obstacle. There are many different designs that each serve a particular purpose, the Oxford English Dictionary traces the origin of the word bridge to an Old English word brycg, of the same meaning. The word can be traced back to Proto-Indo-European *bʰrēw-. The word for the game of the same name has a different origin. The first bridges made by humans were probably spans of cut wooden logs or planks and eventually stones, using a simple support, some early Americans used trees or bamboo poles to cross small caverns or wells to get from one place to another. Dating to the Greek Bronze Age, it is one of the oldest arch bridges still in existence, several intact arched stone bridges from the Hellenistic era can be found in the Peloponnese. The greatest bridge builders of antiquity were the ancient Romans, the Romans built arch bridges and aqueducts that could stand in conditions that would damage or destroy earlier designs. An example is the Alcántara Bridge, built over the river Tagus, the Romans also used cement, which reduced the variation of strength found in natural stone. One type of cement, called pozzolana, consisted of water, lime, sand, brick and mortar bridges were built after the Roman era, as the technology for cement was lost. In India, the Arthashastra treatise by Kautilya mentions the construction of dams, a Mauryan bridge near Girnar was surveyed by James Princep. The bridge was swept away during a flood, and later repaired by Puspagupta, the use of stronger bridges using plaited bamboo and iron chain was visible in India by about the 4th century. A number of bridges, both for military and commercial purposes, were constructed by the Mughal administration in India and this bridge is also historically significant as it is the worlds oldest open-spandrel stone segmental arch bridge. European segmental arch bridges date back to at least the Alconétar Bridge, rope bridges, a simple type of suspension bridge, were used by the Inca civilization in the Andes mountains of South America, just prior to European colonization in the 16th century. During the 18th century there were innovations in the design of timber bridges by Hans Ulrich Grubenmann, Johannes Grubenmann. The first book on bridge engineering was written by Hubert Gautier in 1716, a major breakthrough in bridge technology came with the erection of the Iron Bridge in Shropshire, England in 1779. It used cast iron for the first time as arches to cross the river Severn, with the Industrial Revolution in the 19th century, truss systems of wrought iron were developed for larger bridges, but iron does not have the tensile strength to support large loads. With the advent of steel, which has a tensile strength, much larger bridges were built. In 1927 welding pioneer Stefan Bryła designed the first welded bridge in the world
15.
Viaduct
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A viaduct is a bridge composed of several small spans for crossing a valley, dry or wetland, or forming a flyover. The term viaduct is derived from the Latin via for road and ducere, the ancient Romans did not use the term, it is a modern derivation from an analogy with aqueduct. Like the Roman aqueducts, many early viaducts comprised a series of arches of equal length. Viaducts may span land, water or both, a viaduct is a bridge composed of several small spans for crossing a valley or a gorge. The term is conventional for a flyover as opposed to a flying junction or a rail bridge which crosses one feature. In Romance languages, the word refers to a bridge which spans only land. A bridge spanning water is called ponte, the longest viaduct in antiquity may have been the Pont Serme which crossed wide marshes in southern France. Viaducts are commonly used in cities that are railroad centers, such as Chicago, Atlanta, Birmingham, London. These viaducts cross the railroad yards that are needed for freight trains there. These viaducts keep highway and city street traffic from having to be interrupted by the train traffic. Likewise, some viaducts carry railroads over large valleys, or they carry railroads over cities with many cross-streets, many viaducts over land connect points of similar height in a landscape, usually by bridging a river valley or other eroded opening in an otherwise flat area. Often such valleys had roads descending either side that become inadequate for the traffic load, such bridges also lend themselves for use by rail traffic, which requires straighter and flatter routes. Some viaducts have more than one deck, such that one deck has vehicular traffic, others were built to span settled areas, crossing over roads beneath—the reason for many viaducts in London. Viaducts over water use of islands or successive arches. The Millau Viaduct is a cable-stayed road-bridge that spans the valley of the River Tarn near Millau in southern France and it was formally dedicated on 14 December 2004 and opened to traffic two days later. The viaduct Danyang–Kunshan Grand Bridge in China is the longest bridge in the according to Guinness World Records as of 2011. Where a viaduct is built across land rather than water, the space below the arches may be used for such as car parking, vehicle repairs, light industry, bars. In the United Kingdom, many lines in urban areas have been constructed on viaducts
16.
Pier (architecture)
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A pier, in architecture, is an upright support for a structure or superstructure such as an arch or bridge. Sections of structural walls between openings can function as piers, the simplest cross section of the pier is square, or rectangular, but other shapes are also common. In medieval architecture, massive circular supports called drum piers, cruciform piers, columns are a similar upright support, but stand on a round base. In buildings with sequence of bays between piers, each opening between two piers is considered a single bay, single-span bridges have abutments at each end that support the weight of the bridge and serve as retaining walls to resist lateral movement of the earthen fill of the bridge approach. Multi-span bridges require piers to support the ends of spans between these abutments, in cold climates the upstream edge of a pier may include a starkwater to prevent accumulation of broken ice during peak snowmelt flows. The starkwater has a sharpened upstream edge sometimes called a cutwater, the cutwater edge may be of concrete or masonry, but is often capped with a steel angle to resist abrasion and focus force at a single point to fracture floating pieces of ice striking the pier. In the Arc de Triomphe, Paris the central arch and side arches are raised on four massive planar piers, the original plan by Donato Bramante for St Peters Basilica in Rome has richly articulated piers, rendered in solid black. The vaulting they support is in lines, a familiar representation convention in architectural plans. Four piers support the weight of the dome at the central crossing and these piers were found to be too small to support the weight and were changed later by Michelangelo to account for the massive weight of the dome. The piers of the four apses that project from each wall are also strong. Many niches articulate the wall-spaces of the piers, column — pillar Compound pier Pilaster Deep foundation
17.
Ohio
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Ohio /oʊˈhaɪ. oʊ/ is a Midwestern state in the Great Lakes region of the United States. Ohio is the 34th largest by area, the 7th most populous, the states capital and largest city is Columbus. The state takes its name from the Ohio River, the name originated from the Iroquois word ohi-yo’, meaning great river or large creek. Partitioned from the Northwest Territory, the state was admitted to the Union as the 17th state on March 1,1803, Ohio is historically known as the Buckeye State after its Ohio buckeye trees, and Ohioans are also known as Buckeyes. Ohio occupies 16 seats in the United States House of Representatives, Ohio is known for its status as both a swing state and a bellwether in national elections. Six Presidents of the United States have been elected who had Ohio as their home state, Ohios geographic location has proven to be an asset for economic growth and expansion. Because Ohio links the Northeast to the Midwest, much cargo, Ohio has the nations 10th largest highway network, and is within a one-day drive of 50% of North Americas population and 70% of North Americas manufacturing capacity. To the north, Lake Erie gives Ohio 312 miles of coastline, Ohios southern border is defined by the Ohio River, and much of the northern border is defined by Lake Erie. Ohios neighbors are Pennsylvania to the east, Michigan to the northwest, Ontario Canada, to the north, Indiana to the west, Kentucky on the south, Ohio is bounded by the Ohio River, but nearly all of the river itself belongs to Kentucky and West Virginia. Ohio has only that portion of the river between the rivers 1792 low-water mark and the present high-water mark, the border with Michigan has also changed, as a result of the Toledo War, to angle slightly northeast to the north shore of the mouth of the Maumee River. Much of Ohio features glaciated plains, with a flat area in the northwest being known as the Great Black Swamp. Most of Ohio is of low relief, but the unglaciated Allegheny Plateau features rugged hills, in 1965 the United States Congress passed the Appalachian Regional Development Act, at attempt to address the persistent poverty and growing economic despair of the Appalachian Region. This act defines 29 Ohio counties as part of Appalachia, the worst weather disaster in Ohio history occurred along the Great Miami River in 1913. Known as the Great Dayton Flood, the entire Miami River watershed flooded, as a result, the Miami Conservancy District was created as the first major flood plain engineering project in Ohio and the United States. Grand Lake St. Marys in the west central part of the state was constructed as a supply of water for canals in the era of 1820–1850. For many years this body of water, over 20 square miles, was the largest artificial lake in the world and it should be noted that Ohios canal-building projects were not the economic fiasco that similar efforts were in other states. Some cities, such as Dayton, owe their emergence to location on canals. Summers are typically hot and humid throughout the state, while winters generally range from cool to cold, precipitation in Ohio is moderate year-round
18.
Patterson Viaduct
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The Patterson Viaduct was built by the Baltimore and Ohio Railroad as part of its Old Main Line during May to December 1829. The viaduct spanned the Patapsco River at Ilchester, Maryland and it was heavily damaged by a flood in 1866 and subsequently replaced with other structures. The viaduct was constructed during the first building phase of the railroad, the Patterson, the third bridge built for the B&O, was similar in construction to the companys first bridge, the nearby Carrollton Viaduct and was named for B&O director William Patterson. It was designed by Caspar Wever and built under the supervision of John McCartney, the bridge was constructed of granite blocks and was about 360 feet long, rising about 43 feet above its foundations. It had four graduated arches, two of 55 feet chord length each and two of 20 feet chord length each, the smaller arches allowed the passage of two county roadways, one on each side of the river. The exterior surfaces of the blocks were undressed, or rusticated. Patterson ceremonially opened the viaduct on December 4,1829, in 1830, The viaduct was part of the route used by the B&Os first horse-drawn carriage train to Ellicotts Mills. The viaduct was almost totally destroyed in an 1868 flood, a single-span Bollman Truss built into the west abutment in 1869 incorporated the original roadway arch and upstream wing wall. The Bollman design was supplanted by another bridge before the railroad was realigned about 400 feet upstream in 1902–03 with the opening of the Ilchester Tunnel, according to local folklore, Ilchester Tunnel is haunted by Peeping Tom. In 2006, a footbridge, with a design that echoes a Bollman Bridge, was added atop the abutments. The Patterson Viaduct Ruins were listed on the National Register of Historic Places on June 3,1976. MD-12, Baltimore & Ohio Railroad, Patterson Viaduct, West Bank of Patapsco River, near Ilchester Bridge, Ilchester, Howard County, MD,1 photo,1 photo caption page HAER No. MD-21, Baltimore & Ohio Railroad, Ilchester Tunnel, East side of Patapsco River, Ilchester, Howard County, MD,1 photo,1 photo caption page
19.
Coping (architecture)
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Coping consists of the capping or covering of a wall. A splayed or wedge coping slopes in a direction, a saddle coping slopes to either side of a central high point. A coping may consist of stone, brick, tile, slate, metal, in all cases it should be weathered to throw off the water. A diagramatic explanation of copper copings is available, in Romanesque work copings appeared plain and flat, and projected over the wall with a throating to form a drip
20.
Maryland
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The states largest city is Baltimore, and its capital is Annapolis. Among its occasional nicknames are Old Line State, the Free State, the state is named after Henrietta Maria of France, the wife of Charles I of England. George Calvert was the first Lord of Baltimore and the first English proprietor of the colonial grant. Maryland was the state to ratify the United States Constitution. Maryland is one of the smallest U. S. states in terms of area, as well as one of the most densely populated, Maryland has an area of 12,406.68 square miles and is comparable in overall area with Belgium. It is the 42nd largest and 9th smallest state and is closest in size to the state of Hawaii, the next largest state, its neighbor West Virginia, is almost twice the size of Maryland. Maryland possesses a variety of topography within its borders, contributing to its nickname America in Miniature. The mid-portion of this border is interrupted by Washington, D. C. which sits on land that was part of Montgomery and Prince Georges counties and including the town of Georgetown. This land was ceded to the United States Federal Government in 1790 to form the District of Columbia, the Chesapeake Bay nearly bisects the state and the counties east of the bay are known collectively as the Eastern Shore. Close to the town of Hancock, in western Maryland, about two-thirds of the way across the state. This geographical curiosity makes Maryland the narrowest state, bordered by the Mason–Dixon line to the north, portions of Maryland are included in various official and unofficial geographic regions. Much of the Baltimore–Washington corridor lies just south of the Piedmont in the Coastal Plain, earthquakes in Maryland are infrequent and small due to the states distance from seismic/earthquake zones. The M5.8 Virginia earthquake in 2011 was felt moderately throughout Maryland, buildings in the state are not well-designed for earthquakes and can suffer damage easily. The lack of any glacial history accounts for the scarcity of Marylands natural lakes, laurel Oxbow Lake is an over one-hundred-year-old 55-acre natural lake two miles north of Maryland City and adjacent to Russett. Chews Lake is a natural lake two miles south-southeast of Upper Marlboro. There are numerous lakes, the largest of them being the Deep Creek Lake. Maryland has shale formations containing natural gas, where fracking is theoretically possible, as is typical of states on the East Coast, Marylands plant life is abundant and healthy. Middle Atlantic coastal forests, typical of the southeastern Atlantic coastal plain, grow around Chesapeake Bay, moving west, a mixture of Northeastern coastal forests and Southeastern mixed forests cover the central part of the state
21.
Granite
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Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. Granites can be white, pink, or gray in color. The word granite comes from the Latin granum, a grain, in reference to the structure of such a holocrystalline rock. By definition, granite is a rock with at least 20% quartz. The term granitic means granite-like and is applied to granite and a group of igneous rocks with similar textures and slight variations in composition. Occasionally some individual crystals are larger than the groundmass, in case the texture is known as porphyritic. A granitic rock with a texture is known as a granite porphyry. Granitoid is a general, descriptive field term for lighter-colored, coarse-grained igneous rocks, petrographic examination is required for identification of specific types of granitoids. The extrusive igneous rock equivalent of granite is rhyolite, Granite is nearly always massive, hard and tough, and therefore it has gained widespread use throughout human history, and more recently as a construction stone. The average density of granite is between 2.65 and 2.75 g/cm3, its compressive strength usually lies above 200 MPa, and its viscosity near STP is 3–6 •1019 Pa·s. The melting temperature of dry granite at ambient pressure is 1215–1260 °C, it is reduced in the presence of water. Granite has poor primary permeability, but strong secondary permeability, true granite according to modern petrologic convention contains both plagioclase and alkali feldspars. When a granitoid is devoid or nearly devoid of plagioclase, the rock is referred to as alkali feldspar granite, when a granitoid contains less than 10% orthoclase, it is called tonalite, pyroxene and amphibole are common in tonalite. A granite containing both muscovite and biotite micas is called a binary or two-mica granite, two-mica granites are typically high in potassium and low in plagioclase, and are usually S-type granites or A-type granites. A worldwide average of the composition of granite, by weight percent, based on 2485 analyses. Much of it was intruded during the Precambrian age, it is the most abundant basement rock that underlies the relatively thin veneer of the continents. Outcrops of granite tend to form tors and rounded massifs, granites sometimes occur in circular depressions surrounded by a range of hills, formed by the metamorphic aureole or hornfels. Granite often occurs as small, less than 100 km² stock masses
22.
Ashlar
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Ashlar is finely dressed masonry, either an individual stone that has been worked until squared or the masonry built of such stone. It is the finest stone masonry unit, generally cuboid, mentioned by Vitruvius as opus isodomum, one such decorative treatment consists of small grooves achieved by the application of a metal comb. Generally used only on softer stone ashlar, this decoration is known as masons drag, ashlar is in contrast to rubble masonry, which employs irregularly shaped stones, although sometimes minimally worked or selected for similar size, or both. Ashlar is related but distinct from other stone masonry that is finely dressed but not quadrilateral, such as curvilinear masonry, ashlar may be coursed, which involves lengthy horizontal courses of stone blocks laid in parallel, and therefore with continuous horizontal joints. Ashlar may also be random, which involves stone blocks laid with deliberately discontinuous courses, in either case, it generally uses a joining material such as mortar to bind the blocks together, although dry ashlar construction, metal ties, and other methods of assembly have been used. The dry ashlar of Inca architecture in Cusco and Machu Picchu is particularly fine, the word is attested in Middle English and derives from Old French aisselier, from Latin axilla, diminutive of axis, plank. Ashlar blocks have been used in the construction of buildings as an alternative to brick or other materials. In classical architecture, ashlar wall surfaces were contrasted with rustication. The term is used to describe the dressed stone work of prehistoric Greece and Crete. For example, the tombs of Bronze Age Mycenae use ashlar masonry in the construction of the so-called beehive dome. This dome consists of finely cut ashlar blocks that decrease in size and these domes are not true domes, but are constructed using the corbel arch. Ashlar masonry was also used in the construction of palace facades on Crete. These constructions date to the MM III-LM Ib period, ca, in modern European masonry the blocks are generally about 35 centimetres in height. When shorter than 30 centimetres, they are called small ashlar. In some Masonic groupings, which such societies term jurisdictions, ashlars are used as a metaphor for how ones personal development relates to the tenets of their lodge. Ablaq Dimension stone Opus quadratum Rustication Stone cladding Stone veneer
23.
Quarry
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A quarry is a place from which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate has been excavated from the ground. A quarry is the thing as an open-pit mine from which minerals are extracted. The only non-trivial difference between the two is that open-pit mines that produce building materials and dimension stone are commonly referred to as quarries, the word quarry can also include the underground quarrying for stone, such as Bath stone. The surfaces are polished and finished with varying degrees of sheen or luster, polished slabs are often cut into tiles or countertops and installed in many kinds of residential and commercial properties. Natural stone quarried from the earth is considered a luxury and tends to be a highly durable surface. Quarries in level areas with shallow groundwater or which are located close to surface water often have engineering problems with drainage, generally the water is removed by pumping while the quarry is operational, but for high inflows more complex approaches may be required. For example, the Coquina quarry is excavated to more than 60 feet below sea level, to reduce surface leakage, a moat lined with clay was constructed around the entire quarry. Ground water entering the pit is pumped up into the moat, as a quarry becomes deeper, water inflows generally increase and it also becomes more expensive to lift the water higher during removal, this can become the limiting factor in quarry depth. Some water-filled quarries are worked from beneath the water, by dredging, many people and municipalities consider quarries to be eyesores and require various abatement methods to address problems with noise, dust, and appearance. One of the effective and famous examples of successful quarry restoration is Butchart Gardens in Victoria, BC. A further problem is pollution of roads from trucks leaving the quarries, to control and restrain the pollution of public roads, wheel washing systems are becoming more common. Many quarries naturally fill with water after abandonment and become lakes, water-filled quarries can be very deep with water, often 50 feet or more, that is often surprisingly cold. Unexpectedly cold water can cause a swimmers muscles to weaken, it can also cause shock. Though quarry water is very clear, submerged quarry stones. Several people drown in quarries each year, however, many inactive quarries are converted into safe swimming sites
24.
Woodstock Quartz Monzonite
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The Woodstock Quartz Monzonite is a Silurian or Ordovician quartz monzonite pluton in Baltimore County, Maryland. It is described as a massive biotite-quartz monzonite which intrudes through the Baltimore Gneiss at a single locality surrounding the town of Granite, the extent of this intrusion was originally mapped in 1892 as the Woodstock granite. It was given its current name in 1964 by C. A. Hopson, Hopson grouped the Woodstock Quartz Monzonite with the Ellicott City Granodiorite and the Guilford Quartz Monzonite as Late-kinematic intrusive masses. Woodstock granite has been used in the Capitol Building, the Library of Congress, the Woodstock Quartz Monzonite was described in 1898 as perhaps the best granite in Maryland for general building purposes by Edward B. Mathews of the Maryland Geological Survey, Although so small, it is one of the most important economic areas within the state. This mass of granite, which is intruded into the gneisses, is entirely enveloped by them. That the gneiss is really older than the granite is shown by the number of inclusions found within the latter. These are chiefly of gneiss, and they occur often in huge irregular blocks six to eight or even ten feet in size and they are beautifully puckered and wrinkled and being much richer in ferro-magnesian silicates than the granite itself, their irregular outlines contrast sharply with the lighter background. Mathews described the granite itself as follows, The appearance of the Woodstock granite is well represented in which reproduces the polished surface in natural size. The color of the rock is bright gray, with something of a luster imparted by the quartz and the unaltered feldspars, the mica occurs in evenly disseminated fine black flakes which emphasize the grain of the rock and only slightly subdue the bright fresh aspect of the stone. The polished surfaces, such as are represented in the, are darker than the rough or ashlar finished stone, the 1898 account of Edward B. He continued, Although prospecting has been carried on ever since, the former is the principal one, and was at first called the Branch. Their first contract of importance was furnishing stone for the Baltimore Custom House and they, however, continued the business only a few years. Extravagance and mismanagement caused the failure, and they were succeeded by Edward Green, Sumwalt, under the firm-name of Green & Sumwalt. After a lapse of about sixteen years, the firm was dissolved by the death of McMahon. Mr. Gill continued the business alone for a short while, when he associated with him Wm. H. Johnson, of Baltimore, and they soon after formed with George Mann, Hugh Hanna, Messrs. Grey & Sons, of Philadelphia, and Mr. Hamilton of Baltimore and this company is now conducting the business. The two largest quarries were Waltersville and Fox Rock and these and smaller quarries counted hundreds of stonecutters among their employees
25.
Cast iron
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Cast iron is a group of iron-carbon alloys with a carbon content greater than 2%. Its usefulness derives from its low melting temperature. Carbon ranging from 1. 8–4 wt%, and silicon 1–3 wt% are the main alloying elements of cast iron, Iron alloys with less carbon content are known as steel. While this technically makes the Fe–C–Si system ternary, the principle of cast iron solidification can be understood from the simpler binary iron–carbon phase diagram, cast iron tends to be brittle, except for malleable cast irons. It is resistant to destruction and weakening by oxidation, the earliest cast iron artefacts date to the 5th century BC, and were discovered by archaeologists in what is now Jiangsu in China. Cast iron was used in ancient China for warfare, agriculture, during the 15th century, cast iron became utilized for artillery in Burgundy, France, and in England during the Reformation. The first cast iron bridge was built during the 1770s by Abraham Darby III, cast iron is also used in the construction of buildings. Cast iron is made by re-melting pig iron, often along with quantities of iron, steel, limestone, carbon. Phosphorus and sulfur may be burnt out of the iron, but this also burns out the carbon. Depending on the application, carbon and silicon content are adjusted to the desired levels, other elements are then added to the melt before the final form is produced by casting. Cast iron is melted in a special type of blast furnace known as a cupola. After melting is complete, the molten cast iron is poured into a furnace or ladle. Cast irons properties are changed by adding various alloying elements, or alloyants, next to carbon, silicon is the most important alloyant because it forces carbon out of solution. A low percentage of silicon allows carbon to remain in solution forming iron carbide, a high percentage of silicon forces carbon out of solution forming graphite and the production of grey cast iron. Other alloying agents, manganese, chromium, molybdenum, titanium and vanadium counteracts silicon, promotes the retention of carbon, nickel and copper increase strength, and machinability, but do not change the amount of graphite formed. The carbon in the form of graphite results in an iron, reduces shrinkage, lowers strength. Sulfur, largely a contaminant when present, forms iron sulfide, the problem with sulfur is that it makes molten cast iron viscous, which causes defects. To counter the effects of sulfur, manganese is added because the two form into manganese sulfide instead of iron sulfide, the manganese sulfide is lighter than the melt so it tends to float out of the melt and into the slag
26.
Ellicott City, Maryland
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Ellicott City is an unincorporated community and census-designated place, along with being the county seat of local government in Howard County, Maryland, United States. It is part of the Baltimore–Washington Metropolitan Area, the population was 65,834 at the U. S. Decennial Census of 2010. It is the county seat of Howard County, founded in 1772, the town contains the B. & O. Railroad Museums branch at the Ellicott City Station, built in 1830, and the first terminus of the initial line. The downtown historic district is located in the valley of the Tiber River, as of the 2000 U. S. Census, Ellicott City surpassed Towson, Maryland for the first time, as the largest unincorporated county seat in the country. The town is prone to flooding from the Patapsco River and Tiber Creek and these floods have had a major impact on the history of the town, often destroying important businesses and killing many. Ellicott City has had devastating floods in 1817,1837,1868,1901,1917,1923,1938,1942,1952,1956,1972,1975,1989,2011 and 2016. The 1868 flood washed away 14 houses, killing 39 to 43 in and it wiped out the Granite Manufacturing Cotton Mill, Charles A. Gambrills Patapsco Mill, John Lee Carrolls mill buildings, and dozens of homes. One mill was rebuilt by Charles Gambill, which remained in operation until a fire in 1916, a 1923 flood topped bridges, in 1952 an eight-foot wall of water swept the shops of Ellicott City, and a 1956 flood inflicted heavy damage at the Bartigis Brothers plant. A severe flood occurred in 1972 as a result of rainfall from the remnants of Hurricane Agnes, in which Ellicott City, on 27 Sept 1975, flooded 9.0 feet from Hurricane Eloise. And floods occurred Sept 22,1989 from Hurricane Hugo, and also on Sept 7,2011, on July 30,2016, a storm dropped six inches of rain in two hours on the city. The resulting flash flood caused damage in historic Ellicott City. Many homes, roads, businesses, sidewalks, and more were destroyed by the flooding, including the landmark clock. A state of emergency was declared, and two died as a result of the flooding. In 1766 James Hood used the Maryland Mill Act of 1669 to condemn 20 acres for a site adjacent to his river-side 157 acres property. His grist mill was built on the banks of the Patapsco River where the Frederick road crossed and his son Benjamin rebuilt the corn grinding mill after one of the frequent Patapsco floods in 1768. Benjamin Hood then sold the mill to Joseph Ellicott in 1774 for 1,700 pounds, in later years the B&O railroad ran through the property, with track laid over the graves of the Hood family. In 1775 they expanded their holdings with 30.5 acres from Bartholomew Balderson, John, Andrew, and Joseph Ellicott founded Ellicotts Mills, which became one of the largest milling and manufacturing towns in the East. Nathaniel sold his partnership in 1777, Joseph sold all but his Hoods Mill ownership the next year, the town retained the name Ellicotts Mills when the U. S. Postal stop opened on October 7,1797
27.
Baltimore Terminal Subdivision
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The Baltimore Terminal Subdivision is a railroad line owned and operated by CSX Transportation in the U. S. state of Maryland. The line runs from Baltimore to Halethorpe along the original Baltimore and Ohio Railroad line, one of the oldest rail lines in the United States and the first passenger railroad line. At its east end, it connects with the Philadelphia Subdivision, its west end has a junction with the Capital Subdivision, the B&O began construction in 1828. The original terminal was located in Baltimore at Pratt and Poppleton Streets and this location, initially a temporary wooden shed, became known as the Mount Clare Station. The Mount Clare Shops, the first railroad manufacturing facility in the U. S. was also built in this area, the rail line exited the city in a southwesterly direction. The company encountered varied terrain that required several large cut and fill earthmoving operations, the B&O built the Carrollton Viaduct, the first stone masonry bridge built for a U. S. railroad, during this project. The company provided a ride on the line from Pratt Street to the viaduct on New Year’s Day 1830. The bridge, a National Historic Landmark, is used by CSX today. Construction of the tracks continued southward to the Patapsco River near Halethorpe, today Halethorpe is the southern terminus of the Baltimore Terminal Subdivision. The railroad offered the first regular train service in the U. S. in May 1830. The first permanent train station, the Ellicott City Station, was completed in 1831, also in 1831, the B&O built a junction, known as Relay, just north of the river near Halethorpe and began construction of the Washington Branch south toward Washington, D. C. The section of the line proceeding west from Relay, along the Patapsco, the B&O built a branch line to Locust Point, on the Baltimore harbor, during 1848-49. The branch had a yard and terminal that was used for shipping coal and bulk minerals. A permanent station at Mount Clare was completed c, the railroad opened the larger Camden Station nearby in 1857, and expanded it in 1865. In 1875 new roundhouses were built at Bailey’s and Riverside Yard on Locust Point, another branch line and a larger shipping terminal at Curtis Bay was opened in 1884. Subsequently all coal traffic was routed to the new terminal, the B&O built two larger roundhouses at Riverside in 1907 and no longer used the Bailey’s facilities for locomotive operations. The B&O’s initial route from Baltimore to Philadelphia was on the Philadelphia, Wilmington, the B&O operated a car float across the Baltimore harbor to bring trains from Philadelphia to connections at Locust Point and to the south and west. By the early 1880s this line was controlled by the Pennsylvania Railroad, the B&O then built the Philadelphia Branch
28.
Old Main Line Subdivision
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The Old Main Line Subdivision is a railroad line owned and operated by CSX Transportation in the U. S. state of Maryland. The line runs from Relay west to Point of Rocks, and was once the line of the Baltimore and Ohio Railroad. At its east end, it has junctions with the Capital Subdivision, the initial route of the Baltimore and Ohio Railroad followed the Patapsco River valley west out of Baltimore, with the first section opening for service in 1830. The line left the valley to cross Parrs Ridge, which and it continued west to Harpers Ferry, West Virginia, passing south of Frederick on the way. This line was the route west out of Baltimore until the Metropolitan Branch was constructed from Washington. Since railroad technology was in its infancy, the engineers of the B&O made many decisions which quickly proved to be mistaken. The route was laid out to minimize grades at the expense of curvature, the planes over Parrs Ridge arose from the same decision, and they gained the distinction of becoming one of the first railroad main line right-of-way abandonments in history. All of the stringers and strap rail were replaced. Among these was the Elysville cutoff, where a pair of bridges were constructed to bypass a sharp curve on the side of the river. In making these improvements, older structures were simply abandoned, the granite stringers of the original roadbed were simply left in place and buried. B&O built its first tunnel in 1850 at Henryton, the Henryton Tunnel was widened for double track in 1865, after the Civil War. In 1868 a freak storm flooded the Patapsco and severely damaged the railroad, most of the railroad was rebuilt, but with many alterations to the surviving structures. The first station on the line was built in Ellicott City in 1830, Over the years this station was modified and enlarged, the next station erected was a freight depot in Frederick, built 1831. Another simple station was built in Mt. Airy, which also survives, in the 1870s and 1880s, the railroad undertook a program of station building. Most of these were designed by E. Francis Baldwin and several towns on the Old Main Line received such stations, the most famous of these, at Point of Rocks, still stands in the wye between the OML and the Metropolitan Subdivision. Other stations were built at Sykesville, Ilchester, and Woodstock, in 1901 Leonor F. Loree was installed as president of the railroad. Among other projects, he initiated a reassessment of the Old Main Line which led to a project of systematic improvements, much of the original route and many reroutings were abandoned in favor of new routes along the valley. Many new tunnels were cut, and new bridges were built along new alignments, in particular the Mt. Airy Cutoff tunnelled through Parrs Ridge and reduced the old line through Mt. Airy to a spur
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Capital Subdivision
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The Capital Subdivision is a railroad line owned and operated by CSX Transportation in the U. S. state of Maryland and the District of Columbia. The line runs from near Baltimore, Maryland southwest to Washington, D. C. along the former Baltimore, the subdivisions Alexandria Extension provides a connection to Virginia and points south. The northeast end of the line is at Halethorpe, Maryland, just north of the historic Thomas Viaduct, where it meets the Baltimore Terminal Subdivision and its southwest end is at the yard north of Union Station, at a junction with the Metropolitan Subdivision and Amtraks Northeast Corridor. MARC Trains Camden Line provides passenger service over the length of the main line. The Alexandria Extension runs south 7.2 miles from a junction at Hyattsville, Maryland to the Anacostia Railroad Bridge and this busy route is used by freight trains to Virginia. It runs past Benning Yard and interchanges with the Landover Subdivision, in 1831 the Maryland General Assembly authorized the B&O to build a branch from their main line within 8 miles of Baltimore, to Washington. Construction began in July 1833, and the line opened on August 25,1835, splitting from the B&O main line at Relay, the first B&O passenger station was located west of the Capitol, at 2nd Street and Pennsylvania Avenue NW. In 1852 the New Jersey Avenue Station was built at a point slightly north of the Capitol, on New Jersey Avenue NW, in the area now called Union Station Plaza. When the Washington Terminal Company opened the new Union Station in 1907, the B&O had lost access to the Long Bridge across the river in 1870 due to political maneuvering by the Baltimore and Potomac Railroad. In order to route its trains to points south of Washington, the B&O set up a car float operation at Shepherds Landing. The ferry operation was discontinued in 1906 when the B&O obtained trackage rights from PRR, the B&O built a connecting track from the Alexandria Extension to the B&Ps Anacostia Railroad Bridge, which provided access to PRR tracks in southwest D. C. and the Long Bridge. During World War II, the B&O re-activated the Shepherds Landing crossing at the request of the U. S. Army. The Army had requested an additional Potomac River crossing for troop movements to supplement those on the Long Bridge, both B&O and PRR trains traveled over the 3,360 foot bridge. Train operations on the bridge ceased in 1945 at the end of the war, for many years the junction at Hyattsville, called Alexandria Junction, was controlled by JD Tower. B&O built its first interlocking tower building at the site in 1894, CSX closed this tower in 1992, and demolished it in 1994 after a fire. The original track from the junction at Anacostia Bridge to Shepherds Landing became known as the Shepherd Branch and this spur served several industries, including Bolling Air Force Base and the Blue Plains Advanced Wastewater Treatment Plant. The Blue Plains plant was the customer on the branch when rail service ended in 2001. The Chesapeake and Ohio Railway acquired control of the B&O in 1962, in 1980 the Chessie System merged with the Seaboard System to form CSX Corporation
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Post road
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A post road is a road designated for the transportation of postal mail. In various centuries and countries, post road became more or less equivalent to main road, royal road, the 20th century spread of postal service blurred the distinction. In what was to become the United States, post roads developed as the primary method of communicating information across. The Articles of Confederation authorized the government to create post offices. Constitution changed this, as Article I, Section Eight, known as the Postal Clause, specifically authorizes Congress the enumerated power to establish post offices and this was generally interpreted liberally, to include all public highways. U. S. Supreme Court justice Joseph Story defended the broad interpretation that had become dominant in his influential Commentaries on the Constitution of the United States, a law of 1838 designated all existing and future railroads as post roads. Route 22 in its form was established in 1930 as one of the principal routes from New York City to Canada. Chemin du Roy was built between Montreal and Quebec City from 1731 to 1737, for mail and as a means of travel for the key settlements in New France/Lower Canada and it was later incorporated as Quebec Route 2 and is now part of Quebec Route 138. Two notable post roads built in the late 1700s and early 1800s were Dundas Road and Kingston Road to provide a route of mail and stagecoaches between key settlements in Upper Canada. The latter route, which became The Provincial Highway in 1917, great Post Road, from Anyer to Panarukan, Indonesia, which was built during the governancy of Herman Willem Daendels of Dutch East Indies from 1808 to 1811. Antwerp-Venice Post Road, similar to the Dutch Post Road, bremen-Hamburg Post Road, approved by the king of Sweden on July 5,1665 to establish regular mail service. A second route was routed from Cuxhaven through the Land of Wursten to Lehe, Dutch Post Road, established in 1490, connected the Netherlands with coaching inns in Germany and Italy. Justice Joseph Story, Commentaries on the Constitution of the United States,3 vols
31.
Obelisk
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An obelisk is a tall, four-sided, narrow tapering monument which ends in a pyramid-like shape or pyramidion at the top. These were originally called tekhenu by their builders, the Ancient Egyptians, the Greeks who saw them used the Greek obeliskos to describe them, and this word passed into Latin and ultimately English. Ancient obelisks are monolithic, that is, they consist of a single stone, though this technological capacity exists today, most modern obelisks are made of several stones, some, like the Washington Monument, are buildings. The term stele is used for other monumental, upright. Obelisks were prominent in the architecture of the ancient Egyptians, who placed them in pairs at the entrance of temples. The word obelisk as used in English today is of Greek rather than Egyptian origin because Herodotus, a number of ancient Egyptian obelisks are known to have survived, plus the Unfinished Obelisk found partly hewn from its quarry at Aswan. These obelisks are now dispersed around the world, and fewer than half of them remain in Egypt, the earliest temple obelisk still in its original position is the 68-foot 120-metric-ton red granite Obelisk of Senusret I of the XIIth Dynasty at Al-Matariyyah in modern Heliopolis. The obelisk symbolized the sun god Ra, and during the religious reformation of Akhenaten was said to be a petrified ray of the Aten. It was also thought that the god existed within the structure, Benben was the mound that arose from the primordial waters Nu upon which the creator god Atum settled in the creation story of the Heliopolitan creation myth form of Ancient Egyptian religion. The Benben stone is the top stone of the Egyptian pyramid and it is also related to the Obelisk. The pyramid and obelisk might have inspired by previously overlooked astronomical phenomena connected with sunrise and sunset. The Ancient Romans were strongly influenced by the form, to the extent that there are now more than twice as many obelisks standing in Rome as remain in Egypt. All fell after the Roman period except for the Vatican obelisk and were re-erected in different locations. The largest standing and tallest Egyptian obelisk is the Lateran Obelisk in the square at the west side of the Lateran Basilica in Rome at 105.6 feet tall, not all the Egyptian obelisks in the Roman Empire were set up at Rome. Herod the Great imitated his Roman patrons and set up a red granite Egyptian obelisk in the hippodrome of his new city Caesarea in northern Judea and this one is about 40 feet tall and weighs about 100 metric tons. It was discovered by archaeologists and has been re-erected at its former site and this one stood 95 feet tall and weighing 380 metric tons. Its lower half reputedly also once stood in Istanbul but is now lost, the Istanbul obelisk is 65 feet tall. Rome is the capital of the world
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Architect
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An architect is someone who plans, designs, and reviews the construction of buildings. Etymologically, architect derives from the Latin architectus, which derives from the Greek, practical, technical, and academic requirements for becoming an architect vary by jurisdiction. The terms architect and architecture are used in the disciplines of landscape architecture, naval architecture. In most jurisdictions, the professional and commercial uses of the terms architect, throughout ancient and medieval history, most architectural design and construction was carried out by artisans—such as stone masons and carpenters, rising to the role of master builder. Until modern times, there was no distinction between architect and engineer. In Europe, the architect and engineer were primarily geographical variations that referred to the same person. It is suggested that various developments in technology and mathematics allowed the development of the gentleman architect. Paper was not used in Europe for drawing until the 15th century, pencils were used more often for drawing by 1600. The availability of both allowed pre-construction drawings to be made by professionals, until the 18th-century, buildings continued to be designed and set out by craftsmen with the exception of high-status projects. In most developed countries, only qualified people with appropriate license, certification, or registration with a relevant body, such licensure usually requires an accredited university degree, successful completion of exams, and a training period. To practice architecture implies the ability to independently of supervision. In many places, independent, non-licensed individuals may perform design services outside the professional restrictions, such design houses, in the architectural profession, technical and environmental knowledge, design and construction management, and an understanding of business are as important as design. However, design is the force throughout the project and beyond. An architect accepts a commission from a client, the commission might involve preparing feasibility reports, building audits, the design of a building or of several buildings, structures, and the spaces among them. The architect participates in developing the requirements the client wants in the building, throughout the project, the architect co-ordinates a design team. Structural, mechanical, and electrical engineers and other specialists, are hired by the client or the architect, the architect hired by a client is responsible for creating a design concept that meets the requirements of that client and provides a facility suitable to the required use. In that, the architect must meet with and question the client to ascertain all the requirements, often the full brief is not entirely clear at the beginning, entailing a degree of risk in the design undertaking. The architect may make proposals to the client which may rework the terms of the brief
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Baptism
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Baptism is a Christian sacrament of admission and adoption, almost invariably with the use of water, into the Christian Church generally. The canonical Gospels report that Jesus was baptized—a historical event to which a degree of certainty can be assigned. Baptism has been called a sacrament and an ordinance of Jesus Christ. In some denominations, baptism is also called christening, but for others the word christening is reserved for the baptism of infants, Baptism has also given its name to the Baptist churches and denominations. The usual form of baptism among the earliest Christians was for the candidate to be immersed, in v.16, Matthew will speak of Jesus coming up out of the water. The traditional depiction in Christian art of John the Baptist pouring water over Jesus head may therefore be based on later Christian practice, other common forms of baptism now in use include pouring water three times on the forehead, a method called affusion. Martyrdom was identified early in Church history as baptism by blood, later, the Catholic Church identified a baptism of desire, by which those preparing for baptism who die before actually receiving the sacrament are considered saved. Today, some Christians, particularly Christian Scientists, Quakers, The Salvation Army, and Unitarians, do not see baptism as necessary, among those that do, differences can be found in the manner and mode of baptizing and in the understanding of the significance of the rite. Most Christians baptize in the name of the Father, and of the Son, and of the Holy Spirit, much more than half of all Christians baptize infants, many others hold that only believers baptism is true baptism. Some insist on submersion or at least partial immersion of the person who is baptized, others consider that any form of washing by water, as long as the water flows on the head, is sufficient. The term baptism has also used to refer to any ceremony, trial, or experience by which a person is initiated, purified. The Greek verb baptō, dip, from which the verb baptizo is derived, is in turn hypothetically traced to a reconstructed Indo-European root *gʷabh-, the Greek words are used in a great variety of meanings. John the Baptist, who is considered a forerunner to Christianity, the apostle Paul distinguished between the baptism of John, and baptism in the name of Jesus, and it is questionable whether Christian baptism was in some way linked with that of John. Christians consider Jesus to have instituted the sacrament of baptism, though whether Jesus intended to institute a continuing, the earliest Christian baptisms were probably normally by immersion, complete or partial. Though other modes may have also been used, at the hour in which the cock crows, they shall first pray over the water. When they come to the water, the water shall be pure and flowing, that is, then they shall take off all their clothes. The children shall be baptized first, all of the children who can answer for themselves, let them answer. If there are any children who cannot answer for themselves, let their parents answer for them, after this, the men will be baptized
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Whisky
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Whisky or whiskey is a type of distilled alcoholic beverage made from fermented grain mash. Various grains are used for different varieties, including barley, corn, rye, Whisky is typically aged in wooden casks, generally made of charred white oak. Whisky is a strictly regulated spirit worldwide with many classes and types, the typical unifying characteristics of the different classes and types are the fermentation of grains, distillation, and aging in wooden barrels. The word whiskey is an anglicisation of the Classical Gaelic word uisce meaning water, distilled alcohol was known in Latin as aqua vitae. This was translated to Classical Gaelic as uisce beatha, which became uisce beatha in Irish, early forms of the word in English included uskebeaghe, usquebaugh, usquebath, and usquebae. Much is made of the two spellings, whiskey and whisky. There are two schools of thought on the issue, there is general agreement that when quoting the proper name printed on a label, the spelling on the label should not be altered. Some writers refer to whisky or whisky/whiskey to acknowledge the variation, the spelling whiskey is common in Ireland and the United States, while whisky is used in all other whisky producing countries. In the US, the usage has not always been consistent, from the late eighteenth century to the mid twentieth century, American writers used both spellings interchangeably until the introduction of newspaper style guides. Since the 1960s, American writers have increasingly used whiskey as the spelling for aged grain spirits made in the US. Scotch is the internationally recognized term for Scotch whisky, the earliest certain chemical distillations were by Greeks in Alexandria in the 1st century AD, but these were not distillations of alcohol. The medieval Arabs adopted the technique of the Alexandrian Greeks, and written records in Arabic begin in the 9th century. Distilling technology passed from the medieval Arabs to the medieval Latins, the earliest records of the distillation of alcohol are in Italy in the 13th century, where alcohol was distilled from wine. An early description of the technique was given by Ramon Llull and its use spread through medieval monasteries, largely for medicinal purposes, such as the treatment of colic and smallpox. The art of distillation spread to Ireland and Scotland no later than the 15th century, the practice of medicinal distillation eventually passed from a monastic setting to the secular via professional medical practitioners of the time, The Guild of Barber Surgeons. The earliest Irish mention of whisky comes from the seventeenth-century Annals of Clonmacnoise, between 1536 and 1541, King Henry VIII of England dissolved the monasteries, sending their monks out into the general public. Whisky production moved out of a setting and into personal homes. The distillation process was still in its infancy, whisky itself was not allowed to age, renaissance-era whisky was also very potent and not diluted
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American Civil War
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The American Civil War was an internal conflict fought in the United States from 1861 to 1865. The Union faced secessionists in eleven Southern states grouped together as the Confederate States of America, the Union won the war, which remains the bloodiest in U. S. history. Among the 34 U. S. states in February 1861, War broke out in April 1861 when Confederates attacked the U. S. fortress of Fort Sumter. The Confederacy grew to eleven states, it claimed two more states, the Indian Territory, and the southern portions of the western territories of Arizona. The Confederacy was never recognized by the United States government nor by any foreign country. The states that remained loyal, including border states where slavery was legal, were known as the Union or the North, the war ended with the surrender of all the Confederate armies and the dissolution of the Confederate government in the spring of 1865. The war had its origin in the issue of slavery. The Confederacy collapsed and 4 million slaves were freed, but before his inauguration, seven slave states with cotton-based economies formed the Confederacy. The first six to declare secession had the highest proportions of slaves in their populations, the first seven with state legislatures to resolve for secession included split majorities for unionists Douglas and Bell in Georgia with 51% and Louisiana with 55%. Alabama had voted 46% for those unionists, Mississippi with 40%, Florida with 38%, Texas with 25%, of these, only Texas held a referendum on secession. Eight remaining slave states continued to reject calls for secession, outgoing Democratic President James Buchanan and the incoming Republicans rejected secession as illegal. Lincolns March 4,1861 inaugural address declared that his administration would not initiate a civil war, speaking directly to the Southern States, he reaffirmed, I have no purpose, directly or indirectly to interfere with the institution of slavery in the United States where it exists. I believe I have no right to do so, and I have no inclination to do so. After Confederate forces seized numerous federal forts within territory claimed by the Confederacy, efforts at compromise failed, the Confederates assumed that European countries were so dependent on King Cotton that they would intervene, but none did, and none recognized the new Confederate States of America. Hostilities began on April 12,1861, when Confederate forces fired upon Fort Sumter, while in the Western Theater the Union made significant permanent gains, in the Eastern Theater, the battle was inconclusive in 1861–62. The autumn 1862 Confederate campaigns into Maryland and Kentucky failed, dissuading British intervention, Lincoln issued the Emancipation Proclamation, which made ending slavery a war goal. To the west, by summer 1862 the Union destroyed the Confederate river navy, then much of their western armies, the 1863 Union siege of Vicksburg split the Confederacy in two at the Mississippi River. In 1863, Robert E. Lees Confederate incursion north ended at the Battle of Gettysburg, Western successes led to Ulysses S. Grants command of all Union armies in 1864
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Washington, D.C.
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Washington, D. C. formally the District of Columbia and commonly referred to as Washington, the District, or simply D. C. is the capital of the United States. The signing of the Residence Act on July 16,1790, Constitution provided for a federal district under the exclusive jurisdiction of the Congress and the District is therefore not a part of any state. The states of Maryland and Virginia each donated land to form the federal district, named in honor of President George Washington, the City of Washington was founded in 1791 to serve as the new national capital. In 1846, Congress returned the land ceded by Virginia, in 1871. Washington had an population of 681,170 as of July 2016. Commuters from the surrounding Maryland and Virginia suburbs raise the population to more than one million during the workweek. The Washington metropolitan area, of which the District is a part, has a population of over 6 million, the centers of all three branches of the federal government of the United States are in the District, including the Congress, President, and Supreme Court. Washington is home to national monuments and museums, which are primarily situated on or around the National Mall. The city hosts 176 foreign embassies as well as the headquarters of international organizations, trade unions, non-profit organizations, lobbying groups. A locally elected mayor and a 13‑member council have governed the District since 1973, However, the Congress maintains supreme authority over the city and may overturn local laws. D. C. residents elect a non-voting, at-large congressional delegate to the House of Representatives, the District receives three electoral votes in presidential elections as permitted by the Twenty-third Amendment to the United States Constitution, ratified in 1961. Various tribes of the Algonquian-speaking Piscataway people inhabited the lands around the Potomac River when Europeans first visited the area in the early 17th century, One group known as the Nacotchtank maintained settlements around the Anacostia River within the present-day District of Columbia. Conflicts with European colonists and neighboring tribes forced the relocation of the Piscataway people, some of whom established a new settlement in 1699 near Point of Rocks, Maryland. 43, published January 23,1788, James Madison argued that the new government would need authority over a national capital to provide for its own maintenance. Five years earlier, a band of unpaid soldiers besieged Congress while its members were meeting in Philadelphia, known as the Pennsylvania Mutiny of 1783, the event emphasized the need for the national government not to rely on any state for its own security. However, the Constitution does not specify a location for the capital, on July 9,1790, Congress passed the Residence Act, which approved the creation of a national capital on the Potomac River. The exact location was to be selected by President George Washington, formed from land donated by the states of Maryland and Virginia, the initial shape of the federal district was a square measuring 10 miles on each side, totaling 100 square miles. Two pre-existing settlements were included in the territory, the port of Georgetown, Maryland, founded in 1751, many of the stones are still standing
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Union (American Civil War)
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The Union was opposed by 11 southern slave states that formed the Confederate States, or the Confederacy. All of the Unions states provided soldiers for the U. S. Army, the Border states played a major role as a supply base for the Union invasion of the Confederacy. The Northeast provided the resources for a mechanized war producing large quantities of munitions and supplies. The Midwest provided soldiers, food, horses, financial support, Army hospitals were set up across the Union. Most states had Republican governors who energetically supported the war effort, the Democratic Party strongly supported the war in 1861 but in 1862 was split between the War Democrats and the anti-war element led by the Copperheads. The Democrats made major gains in 1862 in state elections. They lost ground in 1863, especially in Ohio, in 1864 the Republicans campaigned under the National Union Party banner, which attracted many War Democrats and soldiers and scored a landslide victory for Lincoln and his entire ticket. The war years were quite prosperous except where serious fighting and guerrilla warfare took place along the southern border, prosperity was stimulated by heavy government spending and the creation of an entirely new national banking system. The Union states invested a great deal of money and effort in organizing psychological and social support for soldiers wives, widows, orphans, and for the soldiers themselves. Most soldiers were volunteers, although after 1862 many volunteered to escape the draft, Draft resistance was notable in some larger cities, especially New York City with its massive anti-draft riots of 1863 and in some remote districts such as the coal mining areas of Pennsylvania. In the context of the American Civil War, the Union is sometimes referred to as the North, both then and now, as opposed to the Confederacy, which was the South. The Union never recognized the legitimacy of the Confederacys secession and maintained at all times that it remained entirely a part of the United States of America, in foreign affairs the Union was the only side recognized by all other nations, none of which officially recognized the Confederate government. The term Union occurs in the first governing document of the United States, the subsequent Constitution of 1787 was issued and ratified in the name not of the states, but of We the People of the United States, in Order to form a more perfect Union. Union, for the United States of America, is repeated in such clauses as the Admission to the Union clause in Article IV. Even before the war started, the preserve the Union was commonplace. Using the term Union to apply to the non-secessionist side carried a connotation of legitimacy as the continuation of the political entity. In comparison to the Confederacy, the Union had a large industrialized and urbanized area, additionally, the Union states had a manpower advantage of 5 to 2 at the start of the war. Year by year, the Confederacy shrank and lost control of increasing quantities of resources, meanwhile, the Union turned its growing potential advantage into a much stronger military force
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Mortar (masonry)
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In its broadest sense mortar includes pitch, asphalt, and soft mud or clay, such as used between mud bricks. Mortar comes from Latin mortarium meaning crushed, mortars are typically made from a mixture of sand, a binder, and water. The most common binder since the early 20th century is Portland cement, there are several types of cement mortars and additives. The first mortars were made of mud and clay, because of a lack of stone and an abundance of clay, Babylonian constructions were of baked brick, using lime or pitch for mortar. According to Roman Ghirshman, the first evidence of using a form of mortar was at the Mehrgarh of Baluchistan in Pakistan. The ancient sites of Harappan civilization of third millennium BCE are built with kiln-fired bricks, gypsum mortar, also called plaster of Paris, was used in the construction of the Egyptian pyramids and many other ancient structures. It is made from gypsum, which requires a firing temperature. It is therefore easier to make lime mortar and sets up much faster which may be a reason it was used as the typical mortar in ancient, brick arch. Gypsum mortar is not as durable as other mortars in damp conditions, in early Egyptian pyramids, which were constructed during the Old Kingdom, the limestone blocks were bound by mortar of mud and clay, or clay and sand. In later Egyptian pyramids, the mortar was made of gypsum or lime. Gypsum mortar was essentially a mixture of plaster and sand and was quite soft, in the Indian subcontinent, multiple cement types have been observed in the sites of the Indus Valley Civilization, such as the Mohenjo-daro city-settlement that dates to earlier than 2600 BCE. Bitumen mortar was used at a lower-frequency, including in the Great Bath at Mohenjo-daro. Historically, building with concrete and mortar next appeared in Greece, the excavation of the underground aqueduct of Megara revealed that a reservoir was coated with a pozzolanic mortar 12 mm thick. This aqueduct dates back to c.500 BCE, pozzolanic mortar is a lime based mortar, but is made with an additive of volcanic ash that allows it to be hardened underwater, thus it is known as hydraulic cement. The Greeks obtained the volcanic ash from the Greek islands Thira and Nisiros, or from the then Greek colony of Dicaearchia near Naples, the Romans later improved the use and methods of making what became known as pozzolanic mortar and cement. Even later, the Romans used a mortar without pozzolana using crushed terra cotta, introducing aluminum oxide and this mortar was not as strong as pozzolanic mortar, but, because it was denser, it better resisted penetration by water. Hydraulic mortar was not available in ancient China, possibly due to a lack of volcanic ash, around 500 CE, sticky rice soup was mixed with slaked lime to make an inorganic−organic composite mortar that had more strength and water resistance than lime mortar. It is not understood how the art of making hydraulic mortar and cement, during the Middle Ages when the Gothic cathedrals were being built, the only active ingredient in the mortar was lime
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Track (rail transport)
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The track on a railway or railroad, also known as the permanent way, is the structure consisting of the rails, fasteners, railroad ties and ballast, plus the underlying subgrade. It enables trains to move by providing a surface for their wheels to roll upon. For clarity it is referred to as railway track or railroad track. Tracks where electric trains or electric trams run are equipped with a system such as an overhead electrical power line or an additional electrified rail. The term permanent way also refers to the track in addition to structures such as fences etc. Most railroads with heavy traffic use continuously welded rails supported by sleepers attached via baseplates that spread the load, a plastic or rubber pad is usually placed between the rail and the tieplate where concrete sleepers are used. The rail is held down to the sleeper with resilient fastenings. For much of the 20th century, rail track used softwood timber sleepers and jointed rails, jointed rails were used at first because contemporary technology did not offer any alternative. The joints also needed to be lubricated, and wear at the mating surfaces needed to be rectified by shimming. For this reason jointed track is not financially appropriate for heavily operated railroads, timber sleepers are of many available timbers, and are often treated with creosote, copper-chrome-arsenic, or other wood preservative. Pre-stressed concrete sleepers are used where timber is scarce and where tonnage or speeds are high. Steel is used in some applications, the track ballast is customarily crushed stone, and the purpose of this is to support the sleepers and allow some adjustment of their position, while allowing free drainage. A disadvantage of traditional track structures is the demand for maintenance, particularly surfacing and lining to restore the desired track geometry. Weakness of the subgrade and drainage deficiencies also lead to maintenance costs. This can be overcome by using ballastless track, in its simplest form this consists of a continuous slab of concrete with the rails supported directly on its upper surface. There are a number of systems, and variations include a continuous reinforced concrete slab. Many permutations of design have been put forward, however, ballastless track has a high initial cost, and in the case of existing railroads the upgrade to such requires closure of the route for a long period. Its whole-life cost can be lower because of the reduction in maintenance, some rubber-tyred metros use ballastless tracks
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Grout
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Grout is a particularly fluid form of concrete used to fill gaps. It is often color tinted when it will remain visible, unlike other structural pastes such as plaster or joint compound, correctly mixed and applied grout forms a waterproof seal. Grout varieties include tiling grout, flooring grout, resin grout, non-shrink grout, structural grout, tiling grout is often used to fill the spaces between tiles or mosaics, and to secure tile to its base. Although ungrouted mosaics do exist, most have grout between the tesserae, tiling grout is also cement-based, and comes in sanded as well as unsanded varieties. The sanded variety contains finely ground silica sand, unsanded is finer and they are often enhanced with polymers and/ or latex. Structural grout is used in reinforced masonry to fill voids in masonry housing reinforcing steel, securing the steel in place. Non-shrink grout is used beneath metal bearing plates to ensure a consistent bearing surface between the plate and its substrate, portland cement is the most common cementing agent in grout, but thermoset polymer matrix grouts based on thermosets such as urethanes and epoxies are also popular. Finer particle sizes let the grout penetrate more deeply into a fissure, because these grouts depend on the presence of sand for their basic strength, they are often somewhat gritty when finally cured and hardened. Tools associated with include, Grout saw or grout scraper. The blade is composed of tungsten carbide. Grout float, a tool for smoothing the surface of a grout line. Grout sealer, a water-based or solvent-based sealant applied over dried grout that resists water, oil, die grinder, for faster removal of old grout than a standard grout saw. Pointing trowel, used for applying grout in flagstone, and other stone works, Mortar Mortar joint Caulk Thinset Glue
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Royal Blue (train)
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The Royal Blue was the Baltimore and Ohio Railroad s flagship passenger train between New York City and Washington, D. C. in the United States, beginning in 1890. The Baltimore-based B&O also used the name between 1890 and 1917 for its passenger service between New York and Washington launched in the 1890s, collectively dubbed the Royal Blue Line. Principal intermediate cities served were Philadelphia, Wilmington, and Baltimore, beginning in 1917, former Royal Blue Line trains were renamed, the Royal Limited, for example, became the National Limited, continuing west from Washington to St. Louis via Cincinnati. During the Depression, the B&O hearkened back to the halcyon pre-World War I era when it launched a re-christened Royal Blue train between New York and Washington in 1935. The B&O finally discontinued passenger service north of Baltimore on April 26,1958, Railroad historian Herbert Harwood said, in his seminal history of the service, First conceived in late Victorian times to promote a new railroad line. It was indeed one of the most memorable images in the transportation business, the Royal Blue all meant different things at different times. But essentially they all symbolized one thing, the B&Os regal route, between the 1890s and World War I, the B&Os six daily Royal Blue trains providing service between New York and Washington were noted for their luxury, elegant appearance, and speed. The car interiors were paneled in mahogany, had fully enclosed vestibules, then-modern heating and lighting, the car exteriors were painted a deep Royal Saxony blue color with gold leaf trim. S. A harbinger of the locomotives eventual demise. In 1881, the Pennsylvania Railroad purchased a controlling interest in the PW&B, the B&O then built a new line from Baltimore to connect to the Philadelphia and Reading Railroad in Philadelphia, completed in 1886. The new route presented problems in Baltimore, because a ferry boat was necessary to cross the harbor between Locust Point and Canton to connect with the B&Os Washington Branch. The solution was the Baltimore Belt Line, which included a 1. 4-mile long tunnel under Howard Street in downtown Baltimore, work began on the tunnel in 1891 and was completed on May 1,1895, when the first train traversed the tunnel. An electric locomotive first pulled a Royal Blue train through the Howard Street tunnel on June 27,1895, the stations interior featured marble mosaic flooring, a fireplace, and rocking chairs. It opened the year on September 1,1896. It was considered, said the Baltimore Sun, the most splendid station in the country built, even before the Baltimore Belt Line project was finished, the B&O launched its Royal Blue service on July 31,1890. Powered by 4-6-0 steam locomotives having exceptionally large 78-inch diameter driving wheels for speed, after the Baltimore Belt Line project was completed, travel time between New York and Washington was reduced to five hours, compared to nine hours in the late 1860s. The trains were noted for their elegance and luxury, a Railway Age magazine article of the time reporting on the Royal Blue called it the climax in railway car building. As a result of the U. S. entry into World War I and resulting congestion on the nations railroads, following the end of World War I, the Pennsylvania Railroad continued to allow B&O passenger trains to use Pennsylvania Station for another eight years
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Capitol Limited (B&O train)
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For almost 48 years, it was the B&Os flagship passenger train, noted for personalized service and innovation. At the time of its discontinuation on May 1,1971, the Capitol Limited was inaugurated on May 12,1923, as an all-Pullman sleeping car train running from Pennsylvania Station in New York City to Chicago, via Washington, D. C. Once west of the Pennsys Newark station in New Jersey, the train used the Lehigh Valley and Reading Railroad as far as Philadelphia and it was designed to compete against the luxury trains of the rival Pennsylvania Railroad and New York Central Railroad. The Capitol Limited derived much of its traffic from businessmen. On September 1,1926, the Pennsylvania Railroad terminated its contract with the B&O, in 1938, the B&O dieselized the train after purchasing two sets of the new EA and EB locomotives from General Motors Electro-Motive Corporation. S. By September 1940, the sleeping cars operating to New York were all streamlined. Following World War II, the B&O and the Santa Fe railway launched through sleeping car service between Washington, D. C. and Los Angeles on the Capitol Limited and the Santa Fes Chief. In February,1956, the Capitol Limited departed Jersey City at 12,45 p. m. as train #5, as an express, all-Pullman sleeping car train, the Capitol Limited made limited stops along its 991-mile route to Chicago. See the table at right for a list of all station stops, eastbound, the train departed Chicago at 4,30 p. m. as train #6. The B&O was the first railroad to introduce air conditioning on its trains, beginning with the Columbian in 1931, followed by the Capitol Limited on May 22,1932 and this innovation received favorable comment nationwide by the news media. The Capitol Limited received streamlined heavyweight sleeping and dining cars in 1938, in 1941 these cars were augmented by several lightweight 10-roomette 5-bedroom sleeping cars. By the early 1950s, the B&O had combined through cars for the Capitol Limited, the Columbian, the B&O re-equipped the Capitol Limited with new, streamlined sleeping cars in 1950 and 1954, including the new duplex-roomette type. The Pullmans were named after rivers and lakes along the route, such as Cacapon. Dome cars Moonlight Dome and Starlight Dome, having sleeping compartments on their levels, were added on January 8,1951. A twin-unit dining car seating 64 passengers at a time was obtained from the New York Central in 1957, the B&O gave up on competing with the Pennsylvania Railroad into New York, discontinuing all passenger service north of Baltimore on April 26,1958. Thereafter, the Capitol Limited operated between Washington and Chicago as a train, with a few cars originating in Baltimore until 1966. Other B&O passenger trains were combined with the Capitol Limited, the Ambassador to Detroit, the combined train in the early 1960s had as many as 22 cars pulled by five locomotives. To stem the loss of passengers and resulting deficits, the B&O in the early 1960s offered reduced mid-week fares, auto shipment for passengers, the train was marginally profitable, when mail and express revenue was included
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Chicago
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Chicago, officially the City of Chicago, is the third-most populous city in the United States. With over 2.7 million residents, it is the most populous city in the state of Illinois, and it is the county seat of Cook County. In 2012, Chicago was listed as a global city by the Globalization and World Cities Research Network. Chicago has the third-largest gross metropolitan product in the United States—about $640 billion according to 2015 estimates, the city has one of the worlds largest and most diversified economies with no single industry employing more than 14% of the workforce. In 2016, Chicago hosted over 54 million domestic and international visitors, landmarks in the city include Millennium Park, Navy Pier, the Magnificent Mile, Art Institute of Chicago, Museum Campus, the Willis Tower, Museum of Science and Industry, and Lincoln Park Zoo. Chicagos culture includes the arts, novels, film, theater, especially improvisational comedy. Chicago also has sports teams in each of the major professional leagues. The city has many nicknames, the best-known being the Windy City, the name Chicago is derived from a French rendering of the Native American word shikaakwa, known to botanists as Allium tricoccum, from the Miami-Illinois language. The first known reference to the site of the current city of Chicago as Checagou was by Robert de LaSalle around 1679 in a memoir, henri Joutel, in his journal of 1688, noted that the wild garlic, called chicagoua, grew abundantly in the area. In the mid-18th century, the area was inhabited by a Native American tribe known as the Potawatomi, the first known non-indigenous permanent settler in Chicago was Jean Baptiste Point du Sable. Du Sable was of African and French descent and arrived in the 1780s and he is commonly known as the Founder of Chicago. In 1803, the United States Army built Fort Dearborn, which was destroyed in 1812 in the Battle of Fort Dearborn, the Ottawa, Ojibwe, and Potawatomi tribes had ceded additional land to the United States in the 1816 Treaty of St. Louis. The Potawatomi were forcibly removed from their land after the Treaty of Chicago in 1833, on August 12,1833, the Town of Chicago was organized with a population of about 200. Within seven years it grew to more than 4,000 people, on June 15,1835, the first public land sales began with Edmund Dick Taylor as U. S. The City of Chicago was incorporated on Saturday, March 4,1837, as the site of the Chicago Portage, the city became an important transportation hub between the eastern and western United States. Chicagos first railway, Galena and Chicago Union Railroad, and the Illinois, the canal allowed steamboats and sailing ships on the Great Lakes to connect to the Mississippi River. A flourishing economy brought residents from rural communities and immigrants from abroad, manufacturing and retail and finance sectors became dominant, influencing the American economy. The Chicago Board of Trade listed the first ever standardized exchange traded forward contracts and these issues also helped propel another Illinoisan, Abraham Lincoln, to the national stage
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National Limited
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It operated from 1925 to 1971. For much of its life it offered exclusive all-Pullman service, the National Limited was one of many trains discontinued when Amtrak began operations in 1971. Amtrak revived the name for another New York–St, Louis service which did not use the B&O route. The B&O had previously operated through cars between New York and western points as the National Limited since December 1916, the all-Pullman version of the National Limited was introduced by the B&O on April 26,1925, as trains Nos.1 and 2. B&Os New York terminus was actually in Jersey City, New Jersey, passengers were then transferred to buses that met the train at the platform. The National Limited traversed some of the most challenging terrain in eastern railroading, climbing the Appalachian Mountains in western Maryland and West Virginia. Unfortunately, because the train traveled the B&Os lightly populated St. Louis main line serving towns in northern West Virginia, still, the train lasted until the startup of Amtrak in 1971. The National Limited was originally a train in the 1920s and 1930s. In addition to compartment and drawing-room sleeping cars, it featured a car, observation library lounge car. Onboard amenities for the deluxe trains clientele included a secretary, barber, valet, maid, manicure, on April 20,1932, it became the first long-distance train to be entirely air conditioned. Connections with southwestern railroads, including the Missouri Pacific, Missouri-Kansas-Texas, Cotton Belt, in 1939–1940, the National Limited was streamlined and dieselized. In the 1950s, coaches were added to the trains consist, the B&O gave up on competing with the Pennsylvania Railroad into New York, discontinuing all passenger service north of Baltimore on April 26,1958. Thereafter, the National Limited operated between Baltimore and St. Louis as a train until 1966, when Washington, D. C. became its eastern terminus. In 1967, the United States Post Office dealt a blow to the B&O. Most of the route through West Virginia, southern Ohio, and south-central Indiana and Illinois was. Few cities or towns existed along the line that could contribute additional revenue or passengers to the train, between Cincinnati and St. Louis, the B&O St. Louis line was single-tracked, and it avoided most of the Midwest cities along the way. While branch lines ran to Columbus, Dayton, Louisville, Indianapolis, Springfield, and other cities and towns and this ultimately would seal the trains fate. The National Limited name was used by Amtrak for a train from New York to Kansas City, Missouri, via Harrisburg, Pittsburgh, Columbus, Dayton, Indianapolis
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St. Louis
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St. Louis is an independent city and major U. S. port in the state of Missouri, built along the western bank of the Mississippi River, on the border with Illinois. Prior to European settlement, the area was a regional center of Native American Mississippian culture. The city of St. Louis was founded in 1764 by French fur traders Pierre Laclède and Auguste Chouteau, in 1764, following Frances defeat in the Seven Years War, the area was ceded to Spain and retroceded back to France in 1800. In 1803, the United States acquired the territory as part of the Louisiana Purchase, during the 19th century, St. Louis developed as a major port on the Mississippi River. In the 1870 Census, St. Louis was ranked as the 4th-largest city in the United States and it separated from St. Louis County in 1877, becoming an independent city and limiting its own political boundaries. In 1904, it hosted the Louisiana Purchase Exposition and the Summer Olympics, the economy of metro St. Louis relies on service, manufacturing, trade, transportation of goods, and tourism. This city has become known for its growing medical, pharmaceutical. St. Louis has 2 professional sports teams, the St. Louis Cardinals of Major League Baseball, the city is commonly identified with the 630-foot tall Gateway Arch in Downtown St. Louis. The area that would become St. Louis was a center of the Native American Mississippian culture and their major regional center was at Cahokia Mounds, active from 900 AD to 1500 AD. Due to numerous major earthworks within St. Louis boundaries, the city was nicknamed as the Mound City and these mounds were mostly demolished during the citys development. Historic Native American tribes in the area included the Siouan-speaking Osage people, whose territory extended west, European exploration of the area was first recorded in 1673, when French explorers Louis Jolliet and Jacques Marquette traveled through the Mississippi River valley. Five years later, La Salle claimed the region for France as part of La Louisiane. The earliest European settlements in the area were built in Illinois Country on the east side of the Mississippi River during the 1690s and early 1700s at Cahokia, Kaskaskia, migrants from the French villages on the opposite side of the Mississippi River founded Ste. In early 1764, after France lost the 7 Years War, Pierre Laclède, the early French families built the citys economy on the fur trade with the Osage, as well as with more distant tribes along the Missouri River. The Chouteau brothers gained a monopoly from Spain on the fur trade with Santa Fe, French colonists used African slaves as domestic servants and workers in the city. In 1780 during the American Revolutionary War, St. Louis was attacked by British forces, mostly Native American allies, the founding of St. Louis began in 1763. Pierre Laclede led an expedition to set up a fur-trading post farther up the Mississippi River, before then, Laclede had been a very successful merchant. For this reason, he and his trading partner Gilbert Antoine de St. Maxent were offered monopolies for six years of the fur trading in that area
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Amtrak
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Founded in 1971 to take over most of the remaining U. S. passenger rail services, it is partially government funded yet operated and managed as a for-profit corporation. Amtrak serves more than 500 destinations in 46 states and three Canadian provinces, operating more than 300 trains each day over 21,300 miles of track, some track sections allow trains to run as fast as 150 mph. In fiscal year 2015, Amtrak served 30.8 million passengers and had $2.185 billion in revenue, nearly two-thirds of passengers come from the 10 largest metropolitan areas, 83% of passengers travel on routes shorter than 400 miles. Its headquarters is at Union Station in Washington, D. C, the name Amtrak is a portmanteau of the words America and trak, the latter itself a sensational spelling of track. From the mid-19th century until about 1920, nearly all intercity travelers in the United States moved by rail, historically, U. S. passenger trains were owned and operated by the same privately owned companies that operated freight trains. About 65,000 railroad passenger cars operated in 1929, from 1920 into the later 20th century, passenger rails popularity diminished and there was a series of pullbacks and tentative recoveries. Rail passenger revenues declined dramatically between 1920 and 1934 because of the rise of the automobile, in the same period, many travelers were lost to interstate bus companies such as Greyhound Lines. However, in the mid-1930s, railroads reignited popular imagination with service improvements and new, diesel-powered streamliners, such as the gleaming silver Pioneer Zephyr and Flying Yankee. Even with the improvements, on a basis, traffic continued to decline. World War II broke the malaise, passenger traffic soared sixfold thanks to troop movements, in 1946, there remained 45 percent fewer passenger trains than in 1929, and the decline quickened despite railroad optimism. Passengers disappeared and so did trains, few trains generated profits, most produced losses. Broad-based passenger rail deficits appeared as early as 1948, and by the mid-1950s, by 1965, only 10,000 rail passenger cars were in operation,85 percent fewer than in 1929. Passenger service was provided on only 75,000 miles of track, the 1960s also saw the end of railway post office revenues, which had helped some of the remaining trains break even. The causes of the decline of rail in the United States were complex. Until 1920, rail was the practical form of intercity transport. By 1930, the companies had constructed, with private funding. In 1916, the amount of track in the United States peaked at 254,251 miles, some rail routes had been built primarily to facilitate the sale of stock in the railroad companies, they were redundant from the beginning. These were the first to be abandoned as the financial positions deteriorated
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MARC Train
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MARC Train Service, known prior to 1984 as Maryland Rail Commuter, is a commuter rail system comprising three lines in the Baltimore-Washington Metropolitan Area. With some equipment capable of reaching speeds of 125 miles per hour, MARC operates 93 trains on a typical weekday over three separate lines of service, the Brunswick Line, the Camden Line, and the Penn Line. MARC added limited weekend service on the Penn Line on December 7,2013, Service is suspended or reduced on selected Federal holidays. The Brunswick Line runs about 74 miles from Washington, D. C. to Martinsburg, West Virginia, over the CSXT Metropolitan and Cumberland Subdivisions, and the Amtrak Washington Terminal District. The Camden Line runs about 39 miles between Washington, D. C. and Camden Station in Baltimore over the CSXT Capital Subdivision and Amtrak Washington Terminal District. The B&O first began service over portions of route in 1830. The Penn Line runs about 77 miles between Washington, D. C. and Perryville, Maryland, via Baltimore Penn Station over Amtraks Northeast Corridor and Washington Terminal District. It is purported to be the fastest commuter rail line in North America, with trains of bi-level cars, the service was initially operated by the Pennsylvania Railroad and is the busiest line, carrying more passengers than the other two lines combined. The Penn Line is the line that operates on weekends. Special Western Maryland service Trains have made special trips to. All three MARC lines date from the 19th century, Service on the Baltimore and Ohio Railroad from Baltimore to Ellicott City began on May 24,1830, this route included part of what is now the Camden Line. B&O service from Baltimore to Washington, the modern Camden Line route, the B&Os main line was extended to Frederick Junction in 1831, to Point of Rocks in 1832, to Brunswick and Harpers Ferry in 1834, and Martinsburg in 1842. The B&O completed its Metropolitan Branch in 1873, most service from Martinsburg and Frederick was diverted onto the Metropolitan Branch to Washington and this established the basic route for what would become the Brunswick Line. The PW&B was initially hostile to the Pennsylvania, however, the PRR acquired it in a battle with the B&O in 1881. The PW&B and the B&P were combined into the PRRs Philadelphia, Baltimore, the B&O ended local service on the Frederick Branch in November 1949. All B&O passenger service between Baltimore and Philadelphia ended in 1958, local service from Washington was curtailed to Camden Station. The B&O continued to offer service to Brunswick plus long-distance service, while the PRR operated a mix of local, intercity. Local service north of Baltimore on the PRR ended around 1964, passenger rail service declined from a variety of factors in the mid 20th century, even as commuting from suburban locations to urban business districts remained common
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Hurricane Agnes
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Hurricane Agnes was, at the time, the costliest hurricane to hit the United States in recorded history. Initially forming as a depression, the storm headed slowly eastward. Once in the Caribbean, the depression began to strengthen, and by the following day, thereafter, Agnes slowly curved northward and passed just west of Cuba on June 17. Early on June 18, the storm intensified enough to be upgraded to Hurricane Agnes, heading northward, the hurricane eventually made landfall near Panama City, Florida late on June 19. After moving inland, Agnes rapidly weakened and was only a depression when it entered Georgia. The weakening trend halted as the storm crossed over Georgia and into South Carolina, while over eastern North Carolina, Agnes re-strengthened into a tropical storm on June 21, as a result of baroclinic activity. Early the following day, the storm emerged into the Atlantic Ocean before re-curving northwestward, Agnes quickly became an extratropical cyclone on June 23, and tracked to the northwest of Great Britain before becoming absorbed by another cyclone on July 6. Though it moved slowly across the Yucatán Peninsula, damage in Mexico is unknown, although the storm bypassed the tip of Cuba, heavy rainfall occurred, killing seven people. In Florida, Agnes caused a significant tornado outbreak, with at least 26 confirmed twisters, the tornadoes and two initially unconfirmed tornadoes in Florida alone resulted in over $4.5 million in damage and six fatalities. At least 2,082 structures in Florida suffered either major damage or were destroyed, about 1,355 other dwellings experienced minor losses. Though Agnes made landfall as a hurricane, no hurricane-force winds were reported, along the coast abnormally high tides resulted in extensive damage, especially between Apalachicola and Cedar Key. Light to moderate rainfall was reported in Florida, though no significant flooding occurred, in Georgia, damage was limited to two tornadoes, which caused approximately $275,000 in losses. Minimal effects were recorded in Alabama, Connecticut, Delaware, Rhode Island, South Carolina. The most significant effects, by far, occurred in Pennsylvania, the hurricane severely flooded the Susquehanna River and the Lackawanna River causing major damage to the Scranton/Wilkes-Barre metropolitan area. In both Pennsylvania and New Jersey combined, about 43,594 structures were destroyed or significantly damaged. In Canada, a home was toppled, killing two people. Overall, Agnes caused 128 fatalities and nearly $3 billion in damage, though more recently, due to the significant effects, the name Agnes was retired in the spring of 1973. In early-mid June 1972, atmospheric conditions favored tropical cyclogenesis in the Caribbean Sea, banded convection developed in the northwestern Caribbean Sea by June 11, though the system did not significantly organize
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