United States Mint
The United States Mint is a unit of the Department of Treasury responsible for producing coinage for the United States to conduct its trade and commerce, as well as controlling the movement of bullion. It does not produce paper money; the Mint was created in Philadelphia in 1792, soon joined by other centers, whose coins were identified by their own mint marks. There are four active coin-producing mints: Philadelphia, San Francisco, West Point; the Mint was created by Congress with the Coinage Act of 1792, placed within the Department of State. Per the terms of the Coinage Act, the first Mint building was in Philadelphia, the capital of the United States. Today, the Mint's headquarters are in Washington D. C.. It operates mint facilities in Philadelphia, San Francisco, West Point, New York and a bullion depository at Fort Knox, Kentucky. Official Mints were once located in Carson City, Nevada. Part of the State Department, the Mint was made an independent agency in 1799, it converted precious metals into standard coin for anyone's account with no seigniorage charge beyond the refining costs.
Under the Coinage Act of 1873, the Mint became part of the Department of the Treasury. It was placed under the auspices of the Treasurer of the United States in 1981. Legal tender coins of today are minted for the Treasury's account; the first Director of the United States Mint was renowned scientist David Rittenhouse from 1792 to 1795. The position was held most by Edmund C. Moy until his resignation effective January 9, 2011; the position was left vacant until April 2018. Henry Voigt was the first Superintendent and Chief Coiner, is credited with some of the first U. S. coin designs. Another important position at the Mint is that of Chief Engraver, held by such men as Frank Gasparro, William Barber, Charles E. Barber, James B. Longacre, Christian Gobrecht; the Mint has operated several branch facilities throughout the United States since the Philadelphia Mint opened in 1792, in a building known as "Ye Olde Mint". With the opening of branch mints came the need for mint marks, an identifying feature on the coin to show its facility of origin.
The first of these branch mints were the Charlotte, North Carolina, Dahlonega and New Orleans, Louisiana branches. Both the Charlotte and Dahlonega Mints were opened to facilitate the conversion of local gold deposits into coinage, minted only gold coins; the Civil War closed both these facilities permanently. The New Orleans Mint closed at the beginning of the Civil War and did not re-open until the end of Reconstruction in 1879. During its two stints as a minting facility, it produced both gold and silver coinage in eleven different denominations, though only ten denominations were minted there at one time. A new branch facility was opened in Carson City, Nevada, in 1870. Like the Charlotte and Dahlonega branches, the Carson City Mint was opened to take advantage of local precious metal deposits, in this case, a large vein of silver. Though gold coins were produced there, no base metal coins were. In 1911 the Mint had a female acting director, Margaret Kelly, at that point the highest paid woman on the government's payroll.
She stated that women were paid within the bureau. A branch of the U. S. mint was established in 1920 in Manila in the Philippines, a U. S. territory. To date, the Manila Mint is the only U. S. mint established outside the continental U. S. and was responsible for producing coins. This branch was in production from 1920 to 1922, again from 1925 through 1941. Coins struck by this mint bear either the M mintmark or none at all, similar to the Philadelphia mint at the time. A branch mint in The Dalles, was commissioned in 1864. Construction was halted in 1870, the facility never produced any coins, although the building still stands. There are four active coin-producing mints: Philadelphia, San Francisco, West Point; the Mint's largest facility is the Philadelphia Mint. The current facility, which opened in 1969, is the fourth Philadelphia Mint; the first was built in 1792, when Philadelphia was still the U. S. capital, began operation in 1793. Until 1980, coins minted at Philadelphia bore no mint mark, with the exceptions of the Susan B.
Anthony dollar and the wartime Jefferson nickel. In 1980, the P mint mark was added to all U. S. coinage except the cent. Until 1968, the Philadelphia Mint was responsible for nearly all official proof coinage. Philadelphia is the site of master die production for U. S. coinage, the engraving and design departments of the Mint are located there. The Denver branch began life in 1863 as the local assay office, just five years after gold was discovered in the area. By the turn of the century, the office was bringing in over $5 million in annual gold and silver deposits, in 1906, the Mint opened its new Denver branch. Denver uses a D mint mark and strikes coinage only for circulation, although it did strike, along with three other mints, the $10 gold 1984 Los Angeles Olympic Com
Blue Ridge Mountains
The Blue Ridge Mountains are a physiographic province of the larger Appalachian Mountains range. The mountain range is located in the eastern United States, extends 550 miles southwest from southern Pennsylvania through Maryland, West Virginia, North Carolina, South Carolina and Georgia; this province consists of northern and southern physiographic regions, which divide near the Roanoke River gap. To the west of the Blue Ridge, between it and the bulk of the Appalachians, lies the Great Appalachian Valley, bordered on the west by the Ridge and Valley province of the Appalachian range; the Blue Ridge Mountains are noted for having a bluish color. Trees put the "blue" in Blue Ridge, from the isoprene released into the atmosphere, thereby contributing to the characteristic haze on the mountains and their distinctive color. Within the Blue Ridge province are two major national parks – the Shenandoah National Park in the northern section, the Great Smoky Mountains National Park in the southern section – and eight national forests including George Washington and Jefferson National Forests, Cherokee National Forest, Pisgah National Forest, Nantahala National Forest and Chattahoochee National Forest.
The Blue Ridge contains the Blue Ridge Parkway, a 469-mile long scenic highway that connects the two parks and is located along the ridge crest-lines with the Appalachian Trail. Although the term "Blue Ridge" is sometimes applied to the eastern edge or front range of the Appalachian Mountains, the geological definition of the Blue Ridge province extends westward to the Ridge and Valley area, encompassing the Great Smoky Mountains, the Great Balsams, the Roans, the Blacks, the Brushy Mountains and other mountain ranges; the Blue Ridge extends as far north into Pennsylvania as South Mountain. While South Mountain dwindles to mere hills between Gettysburg and Harrisburg, the band of ancient rocks that form the core of the Blue Ridge continues northeast through the New Jersey and Hudson River highlands reaching The Berkshires of Massachusetts and the Green Mountains of Vermont; the Blue Ridge contains the highest mountains in eastern North America south of Baffin Island. About 125 peaks exceed 5,000 feet in elevation.
The highest peak in the Blue Ridge is Mt. Mitchell in North Carolina at 6,684 feet. There are 39 peaks in North Tennessee higher than 6,000 feet. Southern Sixers is a term used by peak baggers for this group of mountains; the Blue Ridge Parkway runs 469 miles along crests of the Southern Appalachians and links two national parks: Shenandoah and Great Smoky Mountains. In many places along the parkway, there are metamorphic rocks with folded bands of light-and dark-colored minerals, which sometimes look like the folds and swirls in a marble cake. Most of the rocks that form the Blue Ridge Mountains are ancient granitic charnockites, metamorphosed volcanic formations, sedimentary limestone. Recent studies completed by Richard Tollo, a professor and geologist at George Washington University, provide greater insight into the petrologic and geochronologic history of the Blue Ridge basement suites. Modern studies have found that the basement geology of the Blue Ridge is made of compositionally unique gneisses and granitoids, including orthopyroxene-bearing charockites.
Analysis of zircon minerals in the granite completed by John Aleinikoff at the U. S. Geological Survey has provided more detailed emplacement ages. Many of the features found in the Blue Ridge and documented by Tollo and others have confirmed that the rocks exhibit many similar features in other North American Grenville-age terranes; the lack of a calc-alkaline affinity and zircon ages less than 1,200 Ma suggest that the Blue Ridge is distinct from the Adirondacks, Green Mountains, the New York-New Jersey Highlands. The petrologic and geochronologic data suggest that the Blue Ridge basement is a composite orogenic crust, emplaced during several episodes from a crustal magma source. Field relationships further illustrate that rocks emplaced prior to 1,078–1,064 Ma preserve deformational features; those emplaced post-1,064 Ma have a massive texture and missed the main episode of Mesoproterozoic compression. The Blue Ridge Mountains began forming during the Silurian Period over 400 million years ago.
320 Mya, North America, Europe collided, pushing up the Blue Ridge. At the time of their emergence, the Blue Ridge were among the highest mountains in the world and reached heights comparable to the much younger Alps. Today, due to weathering and erosion over hundreds of millions of years, the highest peak in the range, Mount Mitchell in North Carolina, is only 6,684 feet high – still the highest peak east of the Rockies; the English who settled colonial Virginia in the early 17th century recorded that the native Powhatan name for the Blue Ridge was Quirank. At the foot of the Blue Ridge, various tribes including the Siouan Manahoacs, the Iroquois, the Shawnee hunted and fished. A German physician-explorer, John Lederer, first reached the crest of the Blue Ridge in 1669 and again the following year. At the Treaty of Albany negotiated by Lieutenant Governor Alexander Spotswood, of Virginia with the Iroquois between 1718 and 1722, the Iroquois ceded lands they had conquered south of the Potomac River and east of the Blue Ridge to the Virginia Colony.
This treaty made the Blue Ridge the new demarcation point between the areas and tribes subject to the Six Nati
The Ordovician is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.2 million years from the end of the Cambrian Period 485.4 million years ago to the start of the Silurian Period 443.8 Mya. The Ordovician, named after the Celtic tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same rock beds in northern Wales into the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed strata were different from those of either the Cambrian or the Silurian systems, placed them in a system of their own; the Ordovician received international approval in 1960, when it was adopted as an official period of the Paleozoic Era by the International Geological Congress. Life continued to flourish during the Ordovician as it did in the earlier Cambrian period, although the end of the period was marked by the Ordovician–Silurian extinction events.
Invertebrates, namely molluscs and arthropods, dominated the oceans. The Great Ordovician Biodiversification Event increased the diversity of life. Fish, the world's first true vertebrates, continued to evolve, those with jaws may have first appeared late in the period. Life had yet to diversify on land. About 100 times as many meteorites struck the Earth per year during the Ordovician compared with today; the Ordovician Period began with a major extinction called the Cambrian–Ordovician extinction event, about 485.4 Mya. It lasted for about 42 million years and ended with the Ordovician–Silurian extinction events, about 443.8 Mya which wiped out 60% of marine genera. The dates given are recent radiometric dates and vary from those found in other sources; this second period of the Paleozoic era created abundant fossils that became major petroleum and gas reservoirs. The boundary chosen for the beginning of both the Ordovician Period and the Tremadocian stage is significant, it correlates well with the occurrence of widespread graptolite and trilobite species.
The base of the Tremadocian allows scientists to relate these species not only to each other, but to species that occur with them in other areas. This makes it easier to place many more species in time relative to the beginning of the Ordovician Period. A number of regional terms have been used to subdivide the Ordovician Period. In 2008, the ICS erected a formal international system of subdivisions. There exist Baltoscandic, Siberian, North American, Chinese Mediterranean and North-Gondwanan regional stratigraphic schemes; the Ordovician Period in Britain was traditionally broken into Early and Late epochs. The corresponding rocks of the Ordovician System are referred to as coming from the Lower, Middle, or Upper part of the column; the faunal stages from youngest to oldest are: Late Ordovician Hirnantian/Gamach Rawtheyan/Richmond Cautleyan/Richmond Pusgillian/Maysville/Richmond Middle Ordovician Trenton Onnian/Maysville/Eden Actonian/Eden Marshbrookian/Sherman Longvillian/Sherman Soudleyan/Kirkfield Harnagian/Rockland Costonian/Black River Chazy Llandeilo Whiterock Llanvirn Early Ordovician Cassinian Arenig/Jefferson/Castleman Tremadoc/Deming/Gaconadian The Tremadoc corresponds to the Tremadocian.
The Floian corresponds to the lower Arenig. The Llanvirn occupies the rest of the Darriwilian, terminates with it at the base of the Late Ordovician; the Sandbian represents the first half of the Caradoc. During the Ordovician, the southern continents were collected into Gondwana. Gondwana started the period in equatorial latitudes and, as the period progressed, drifted toward the South Pole. Early in the Ordovician, the continents of Laurentia and Baltica were still independent continents, but Baltica began to move towards Laurentia in the period, causing the Iapetus Ocean between them to shrink; the small continent Avalonia separated from Gondwana and began to move north towards Baltica and Laurentia, opening the Rheic Ocean between Gondwana and Avalonia. The Taconic orogeny, a major mountain-building episode, was well under way in Cambrian times. In the early and middle Ordovician, temperatures were mild, but at the beginning of the Late Ordovician, from 460 to 450 Ma, volcanoes along the margin of the Iapetus Ocean spewed massive amounts of carbon dioxide, a greenhouse gas, into the atmosphere, turning the planet into a hothouse.
Sea levels were high, but as Gondwana moved south, ice accumulated into glaciers and sea levels dropped. At first, low-lying sea beds increased diversity, but glaciation led to mass extinctions as the seas drained and continental shelves became dry land. During the Ordovician, in fact during the Tremadocian, marine transgressions worldwide were the greatest for which evidence is preserved; these volcanic island arcs collided with proto North America to form the Appalachian mountains. By the end of the Late Ordovician the volcanic emissions had stopped. Gondwana had by that time neared the South Pole and was glaciated
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201 million years ago. Reverse genetic engineering and the fossil record both demonstrate that birds are modern feathered dinosaurs, having evolved from earlier theropods during the late Jurassic Period; as such, birds were the only dinosaur lineage to survive the Cretaceous–Paleogene extinction event 66 million years ago. Dinosaurs can therefore be divided into birds; this article deals with non-avian dinosaurs. Dinosaurs are a varied group of animals from taxonomic and ecological standpoints. Birds, at over 10,000 living species, are the most diverse group of vertebrates besides perciform fish. Using fossil evidence, paleontologists have identified over 500 distinct genera and more than 1,000 different species of non-avian dinosaurs.
Dinosaurs are represented on every continent by fossil remains. Through the first half of the 20th century, before birds were recognized to be dinosaurs, most of the scientific community believed dinosaurs to have been sluggish and cold-blooded. Most research conducted since the 1970s, has indicated that all dinosaurs were active animals with elevated metabolisms and numerous adaptations for social interaction; some were herbivorous, others carnivorous. Evidence suggests that egg-laying and nest-building are additional traits shared by all dinosaurs and non-avian alike. While dinosaurs were ancestrally bipedal, many extinct groups included quadrupedal species, some were able to shift between these stances. Elaborate display structures such as horns or crests are common to all dinosaur groups, some extinct groups developed skeletal modifications such as bony armor and spines. While the dinosaurs' modern-day surviving avian lineage are small due to the constraints of flight, many prehistoric dinosaurs were large-bodied—the largest sauropod dinosaurs are estimated to have reached lengths of 39.7 meters and heights of 18 meters and were the largest land animals of all time.
Still, the idea that non-avian dinosaurs were uniformly gigantic is a misconception based in part on preservation bias, as large, sturdy bones are more to last until they are fossilized. Many dinosaurs were quite small: Xixianykus, for example, was only about 50 cm long. Since the first dinosaur fossils were recognized in the early 19th century, mounted fossil dinosaur skeletons have been major attractions at museums around the world, dinosaurs have become an enduring part of world culture; the large sizes of some dinosaur groups, as well as their monstrous and fantastic nature, have ensured dinosaurs' regular appearance in best-selling books and films, such as Jurassic Park. Persistent public enthusiasm for the animals has resulted in significant funding for dinosaur science, new discoveries are covered by the media; the taxon'Dinosauria' was formally named in 1841 by paleontologist Sir Richard Owen, who used it to refer to the "distinct tribe or sub-order of Saurian Reptiles" that were being recognized in England and around the world.
The term is derived from Ancient Greek δεινός, meaning'terrible, potent or fearfully great', σαῦρος, meaning'lizard or reptile'. Though the taxonomic name has been interpreted as a reference to dinosaurs' teeth and other fearsome characteristics, Owen intended it to evoke their size and majesty. Other prehistoric animals, including pterosaurs, ichthyosaurs and Dimetrodon, while popularly conceived of as dinosaurs, are not taxonomically classified as dinosaurs. Pterosaurs are distantly related to dinosaurs; the other groups mentioned are, like dinosaurs and pterosaurs, members of Sauropsida, except Dimetrodon. Under phylogenetic nomenclature, dinosaurs are defined as the group consisting of the most recent common ancestor of Triceratops and Neornithes, all its descendants, it has been suggested that Dinosauria be defined with respect to the MRCA of Megalosaurus and Iguanodon, because these were two of the three genera cited by Richard Owen when he recognized the Dinosauria. Both definitions result in the same set of animals being defined as dinosaurs: "Dinosauria = Ornithischia + Saurischia", encompassing ankylosaurians, ceratopsians, ornithopods and sauropodomorphs.
Birds are now recognized as being the sole surviving lineage of theropod dinosaurs. In traditional taxonomy, birds were considered a separate class that had evolved from dinosaurs, a distinct superorder. However, a majority of contemporary paleontologists concerned with dinosaurs reject the traditional style of classification in favor of phylogenetic taxonomy. Birds are thus considered to be dinosaurs and dinosaurs are, not extinct. Birds are classified as belonging to the subgroup M
Columbus is a consolidated city-county located on the west central border of the U. S. state of Georgia. Located on the Chattahoochee River directly across from Phenix City, Columbus is the county seat of Muscogee County, with which it merged in 1970. Columbus is the third-largest city in the fourth-largest metropolitan area. According to the 2017 estimates from the U. S. Census Bureau, Columbus has a population of 194,058 residents, with 303,811 in the Columbus metropolitan area; the metro area joins the nearby Alabama cities of Auburn and Opelika to form the Columbus–Auburn–Opelika Combined Statistical Area, which has a 2017 estimated population of 499,128. Columbus lies 100 miles southwest of Atlanta. Fort Benning, the United States Army's Maneuver Center of Excellence and a major employer, is located south of the city in Chattahoochee County. Columbus is home to museums and tourism sites, including the National Infantry Museum, dedicated to the United States Army's Infantry Branch, it has the longest urban whitewater rafting course in the world constructed on the Chattahoochee River.
This was for centuries and more the traditional territory of the Creek Indians, who became known as one of the Five Civilized Tribes of the Southeast after European contact. Those who lived closest to white-occupied areas conducted considerable trading and adopted some European-American ways. Founded in 1828 by an act of the Georgia Legislature, Columbus was situated at the beginning of the navigable portion of the Chattahoochee River and on the last stretch of the Federal Road before entering Alabama; the city was named for Christopher Columbus, its founders influenced by the writings of Washington Irving. The plan for the city was drawn up by Dr. Edwin L. DeGraffenried, who placed the town on a bluff overlooking the river. Across the river to the west, where Phenix City, Alabama is now located, Creek Indians still lived until they were forcibly removed in 1836 by the federal government to make way for European-American settlers; the river served as Columbus's connection to the world enabling it to ship its commodity cotton crops from the plantations to the international cotton market via New Orleans and Liverpool, England.
The city's commercial importance increased in the 1850s with the arrival of the railroad. In addition, textile mills were developed along the river, bringing industry to an area reliant upon agriculture. By 1860, the city was one of the more important industrial centers of the South, earning it the nickname "the Lowell of the South," referring to an important textile mill town in Massachusetts; when the Civil War broke out in 1861, the industries of Columbus expanded their production. During the war, Columbus ranked second to Richmond in the manufacture of supplies for the Confederate army; the Eagle Manufacturing Company made textiles of various sorts but woolens for Confederate uniforms. The Columbus Iron Works manufactured cannons and machinery and Gray made firearms, Louis and Elias Haimon produced swords and bayonets. Smaller firms provided additional sundries; as the war turned negative, each faced exponentially growing struggled shortages of raw materials and skilled labor, as well as worsenting financial opportunities.
In addition to textiles, the city had an ironworks, a sword factory, a shipyard for the Confederate Navy. Unaware of Lee's surrender to Grant and the assassination of Abraham Lincoln and Confederates clashed in the Battle of Columbus, Georgia, on Easter Sunday, April 16, 1865, when a Union detachment of two cavalry divisions under Maj. Gen. James H. Wilson attacked the lightly-defended city and burned many of the industrial buildings. John Stith Pemberton, who developed Coca-Cola in Columbus, was wounded in this battle. Col. Charles Augustus Lafayette Lamar, owner of the last slave ship in America, was killed here. A historic marker has been erected in Columbus, it notes that this was the site of the "Last Land Battle in the War from 1861 to 1865." Reconstruction began immediately and prosperity followed. Factories such as the Eagle and Phenix Mills were revived and the industrialization of the town led to rapid growth; the Springer Opera House was built on 10th Street, attracting such notables as Irish writer Oscar Wilde.
The Springer is now the official State Theater of Georgia. By the time of the Spanish–American War, the city's modernization included the addition of trolleys extending to outlying neighborhoods such as Rose Hill and Lakebottom, a new water works. Mayor Lucius Chappell brought a training camp for soldiers to the area; this training camp named Camp Benning would grow into present-day Fort Benning, named for General Henry L. Benning, a native of the city. In the spring of 1866 the Ladies Memorial Association of Columbus passed a resolution to set aside one day annually to memorialize the Confederate dead; the secretary of the association, Mrs. Charles J. Williams, was directed to write a letter inviting the ladies of every Southern state to join them in the observance; the letter was written in March 1866 and sent to representatives of all of the principal cities in the South, including Atlanta, Montgomery, Richmond, St. Louis, Alexandria and New Orleans; this was the beginning of the influential work by ladies' organizations to honor the war dead.
The date for the holiday was selected by Elizabeth "Lizzie" Rutherford Ellis. She chose April 26, the first anniversary of Confederate General Johnston's final surrender to Union General Sherman at Bennett Place, North Carolina. For many in the South, that act marked the official end of the Civil War. In
Ochre or ocher is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand. It ranges in colour from yellow to deep brown, it is the name of the colours produced by this pigment a light brownish-yellow. A variant of ochre containing a large amount of hematite, or dehydrated iron oxide, has a reddish tint known as "red ochre"; the word ochre describes clays colored with iron oxide, derived during the extraction of tin and copper. Ochre is a family of earth pigments, which includes yellow ochre, red ochre, purple ochre and umber; the major ingredient of all the ochres is iron oxide-hydroxide, known as limonite, which gives them a yellow colour. Yellow ochre, FeO·nH2O, is a hydrated iron hydroxide called gold ochre. Red ochre, Fe2O3, takes its reddish colour from the mineral hematite, an anhydrous iron oxide. Purple ochre, is identical to red ochre chemically but of a different hue caused by different light diffraction properties associated with a greater average particle size.
Brown ochre FeO, is a hydrated iron oxide. Sienna contains both limonite and a small amount of manganese oxide, which makes it darker than ochre. Umber pigments contain a larger proportion of manganese; when natural sienna and umber pigments are heated, they are dehydrated and some of the limonite is transformed into hematite, giving them more reddish colours, called burnt sienna and burnt umber. Ochres are non-toxic and can be used to make an oil paint that dries and covers surfaces thoroughly. Modern ochre pigments are made using synthetic iron oxide. Pigments which use natural ochre pigments indicate it with the name PY-43 on the label, following the Colour Index International system; the use of ochre is intensive: it is not unusual to find a layer of the cave floor impregnated with a purplish red to a depth of eight inches. The size of these ochre deposits raises a problem not yet solved; the colouring is so intense that all the loose ground seems to consist of ochre. One can imagine that the Aurignacians painted their bodies red, dyed their animal skins, coated their weapons, sprinkled the ground of their dwellings, that a paste of ochre was used for decorative purposes in every phase of their domestic life.
We must assume no less, if we are to account for the veritable mines of ochre on which some of them lived... Iron oxide is one of the most common minerals found on earth, there is much evidence that yellow and red ochre pigment was used in prehistoric and ancient times by many different civilizations on different continents. Pieces of ochre engraved with abstract designs have been found at the site of the Blombos Cave in South Africa, dated to around 75,000 years ago; the practice of ochre painting was prevalent in ancient Australia. Pleistocene burials with red ochre date as early as 40,000 BP and ochre played a role in expressing symbolic ideologies of the earliest arrivals to the continent. In Wales, the paleolithic burial called the Red Lady of Paviland from its coating of red ochre has been dated to around 33,000 years before present. Paintings of animals made with red and yellow ochre pigments have been found in paleolithic sites at Pech Merle in France, the cave of Altamira in Spain; the cave of Lascaux has an image of a horse coloured with yellow ochre estimated to be 17,300 years old.
According to some scholars, Neolithic burials used red ochre pigments symbolically, either to represent a return to the earth or as a form of ritual rebirth, in which the colour symbolises blood and the Great Goddess. In Ancient Egypt, yellow was associated with gold, considered to be eternal and indestructible; the skin and bones of the gods were believed to be made of gold. The Egyptians used yellow ochre extensively in tomb painting, though they used orpiment, which made a brilliant colour, but was toxic, since it was made with arsenic. In tomb paintings, men were always shown with brown faces, women with yellow ochre or gold faces. Red ochre in Ancient Egypt was used as a rouge. Ochre-coloured lines were discovered on the Unfinished Obelisk at the northern region of the Aswan Stone Quarry, marking work sites. Ochre clays were used medicinally in Ancient Egypt: such use is described in the Ebers Papyrus from Egypt, dating to about 1550 BC. Ochre was the most used pigment for painting walls in the ancient Mediterranean world.
In Ancient Greece, red ochre was called μίλτος, míltos. In Athens when Assembly was called, a contingent of public slaves would sweep the open space of the Agora with ropes dipped in miltos: those citizens that loitered there instead of moving to the Assembly area would risk having their clothes stained with the paint; this prevented them from wearing these clothes in public again, as failure to attend the Assembly incurred a fine. It was known as "raddle", "reddle" or "ruddle" and was used to mark sheep and can be used as a waxy waterproof coating on structures; the reddle was sold as a ready-made mixture to farmers and herders by travelling workers called reddlemen. A reddleman named Diggory Venn was prominently described in Thomas Hardy's 1878 novel entitled The Return of the Native. In classical antiquity, the finest red ochre came from a Greek colony on the Black Sea where the modern city of Sinop in Turkey is located, it was regulated and marked by a special seal
The Appalachian Plateau is a series of rugged dissected plateaus located on the western side of the Appalachian Mountains. The Appalachian Mountains are a mountain range that run down the entire east coast of the United States; the Appalachian Plateau is the northwestern part of the Appalachian Mountains, stretching from New York to Alabama. The plateau is a second level United States physiographic region, covering parts of the states of New York, Ohio, West Virginia, Kentucky, Tennessee and Georgia; the formation of the plateau began during the Paleozoic Era. Regional uplift during this time caused the area to rise altogether without changing the topography of the land; the eastern side of the plateau appears as a mountain range. This false appearance is due to a steep slope on the eastern side known as the Allegheny Front; the eastern edge is the highest part of the Appalachian Plateau. In Pennsylvania, the altitude ranges from 1,750 to 3,000 feet and continues to rise toward West Virginia, where the elevation is around 4,800 feet.
From West Virginia to Tennessee, the elevation lowers to 3,000 feet and continues slanting downward to 1,000 feet in Alabama. On the western side of the plateau, the elevation is 900 feet in Ohio, increasing to about 2,000 feet in Kentucky. From Kentucky the elevation drops down to 500 feet in northwestern Alabama; the plateau has a slight slant towards the northwest, making it higher on the eastern side. A large portion of the plateau is a coalfield, formed 320 million years ago during the Pennsylvanian Age; the plateau was subjected to glaciation during the Pleistocene ice age. As a result, the topography of this section of the plateau is flat in comparison to the rest of the physiographic province; this portion of the plateau is marked with evidence of a glaciated past including bogs and small hills of sand and gravel. The topography of the rest of the plateau was created from stream erosion; the result is a rugged landscape, unlike many other plateaus, that includes many narrow stream valleys surrounded by steep ridges.
The region in Kentucky is known as the Eastern Kentucky Coalfield. It covers around 30 % of Kentucky's land. Major sections include the Allegheny Plateau, the Cumberland Plateau and the Cumberland Mountains, with the highest peaks located in the Cumberland Mountains. A physiographic region is a large portion of land, grouped together by several factors; each region has similar geology and groups of plants and animals. There are eight physiographic regions in the United States; each region is divided into provinces, there are 25 provinces in the United States. Each region is divided into sections, creating 85 different physio-graphic sections in the United States; the Appalachian Plateau is a province of the physiographic region of the Appalachian Highlands. The Appalachian Plateau province is divided into seven physio-graphic sections: Mohawk, Southern New York, Allegheny Mountains, Cumberland Plateau, the Cumberland Mountains; each section is classified under the Appalachian Plateau province because of its similarities in geologic makeup and wildlife.
The Appalachian Plateau falls under the classification of Appalachian Highlands because of those similar characteristics. The rock underlying the Appalachian Plateau consists of a base of Precambrian rock, overlain by sedimentary rock from the Paleozoic Era. On top of the basement is a thick layer 20,000 feet, of a mixture of Cambrian and Middle Silurian rock; this rock consists of shale and sandstone. Above this layer is the Upper Silurian evaporate basin, or basin of chemically formed sedimentary rocks; the Plateau fold belt consists of structurally complex Paleozoic strata which were thrust faulted over the younger evaporates. When the Appalachian mountains were formed, the plateau was lifted. Ridges and valleys all die down underneath the plateau. There are multiple valleys throughout the region which consist of exposed areas of limestone and shale. Archaeologists have evidence that Native Americans lived in the Appalachian region more than twelve thousand years ago. Human artifacts were collected near the Meadowcroft Rockshelter in southern Pennsylvania that were at least sixteen thousand years old.
Because the early Native Americans were hunter-gatherers living off the land, they left little material traces of their lives behind them. This is. Much like many historic Native American tribes, the early Appalachian inhabitants survived as nomads, following their food on a seasonal basis. Around this period, North America was still recuperating from its last glacial period, the climate was much different than now; the climate and habitat more resembled a tundra, with lower temperatures, numerous conifer trees, large mammals, such as mammoths and saber-toothed tigers. The climate began to warm up again, the large mammals started to disappear, the vegetation seen more today began to flourish; these climatic changes made life more sustainable for the Native Americans. They continued to invent new weapons and made advancements in agriculture until the Europeans arrived in North America. Europeans settled in North America beginning in the seventeenth century. In 1749, Jacob Martin and Steven Sewell were the first Europeans known to settle the Appalachian Plateau in what is now Pocahontas County in West Virginia.
European colonization and competition with the Native Americans resulted in high mortality due to new diseases, as well as more deaths and social disr