Kentucky the Commonwealth of Kentucky, is a state located in the east south-central region of the United States. Although styled as the "State of Kentucky" in the law creating it, Kentucky is one of four U. S. states constituted as a commonwealth. A part of Virginia, in 1792 Kentucky became the 15th state to join the Union. Kentucky is the 26th most populous of the 50 United States. Kentucky is known as the "Bluegrass State", a nickname based on the bluegrass found in many of its pastures due to the fertile soil. One of the major regions in Kentucky is the Bluegrass Region in central Kentucky, which houses two of its major cities and Lexington, it is a land with diverse environments and abundant resources, including the world's longest cave system, Mammoth Cave National Park, the greatest length of navigable waterways and streams in the contiguous United States, the two largest man-made lakes east of the Mississippi River. Kentucky is known for horse racing, bourbon distilleries, coal, the "My Old Kentucky Home" historic state park, automobile manufacturing, bluegrass music, college basketball, Kentucky Fried Chicken.
In 1776, the counties of Virginia beyond the Appalachian Mountains became known as Kentucky County, named for the Kentucky River. The precise etymology of the name is uncertain, but based on an Iroquoian name meaning " the meadow" or " the prairie". Others have put forth the possibility of Kenta Aki, which would come from Algonquian language and, would have derived from the Shawnees. Folk etymology states that this translates as "Land of Our Fathers." The closest approximation in another Algonquian language, Ojibwe translates it more-so to "Land of Our In-Laws", thus making a fairer English translation "The Land of Those Who Became Our Fathers." In any case, the word aki comes out as land in all Algonquian languages. Kentucky is situated in the Upland South. A significant portion of eastern Kentucky is part of Appalachia. Kentucky borders seven states, from the Southeast. West Virginia lies to the east, Virginia to the southeast, Tennessee to the south, Missouri to the west and Indiana to the northwest, Ohio to the north and northeast.
Only Missouri and Tennessee, both of which border eight states, touch more. Kentucky's northern border is formed by the Ohio River and its western border by the Mississippi River. However, the official border is based on the courses of the rivers as they existed when Kentucky became a state in 1792. For instance, northbound travelers on U. S. 41 from Henderson, after crossing the Ohio River, will be in Kentucky for about two miles. Ellis Park, a thoroughbred racetrack, is located in this small piece of Kentucky. Waterworks Road is part of the only land border between Kentucky. Kentucky has a non-contiguous part known at the far west corner of the state, it exists as an exclave surrounded by Missouri and Tennessee, is included in the boundaries of Fulton County. Road access to this small part of Kentucky on the Mississippi River requires a trip through Tennessee; the epicenter of the powerful 1811–12 New Madrid earthquakes was near this area causing the river to flow backwards in some places. Though the series of quakes did change the area geologically and affect the inhabitants of the area at the time, the Kentucky Bend was formed because of a surveying error, not the New Madrid earthquake.
Kentucky can be divided into five primary regions: the Cumberland Plateau in the east, the north-central Bluegrass region, the south-central and western Pennyroyal Plateau, the Western Coal Fields and the far-west Jackson Purchase. The Bluegrass region is divided into two regions, the Inner Bluegrass—the encircling 90 miles around Lexington—and the Outer Bluegrass—the region that contains most of the northern portion of the state, above the Knobs. Much of the outer Bluegrass is in the Eden Shale Hills area, made up of short and narrow hills; the Jackson Purchase and western Pennyrile are home to several bald cypress/tupelo swamps. Located within the southeastern interior portion of North America, Kentucky has a climate that can best be described as a humid subtropical climate, only small higher areas of the southeast of the state has an oceanic climate influenced by the Appalachians. Temperatures in Kentucky range from daytime summer highs of 87 °F to the winter low of 23 °F; the average precipitation is 46 inches a year.
Kentucky experiences four distinct seasons, with substantial variations in the severity of summer and winter. The highest recorded temperature was 114 °F at Greensburg on July 28, 1930 while the lowest recorded temperature was −37 °F at Shelbyville on January 19, 1994, it has four distinct seasons, but experiences the extreme cold as far northern states, nor the high heat of the states in the Deep South. Temperatures seldom drop below 0 degrees or rise above 100 degrees. Rain and snowfall totals about 45 inches per year. There are big variations in climate within the state; the northern parts tend to be about 5 degrees cooler than those in western parts of the state. Somerset in the south-central part receives 10 more inches of rain per year than, for instance, Covington to the north. Average temperatures for the entire Commonwe
Atlanta is the capital of, the most populous city in, the U. S. state of Georgia. With an estimated 2017 population of 486,290, it is the 38th most-populous city in the United States; the city serves as the cultural and economic center of the Atlanta metropolitan area, home to 5.8 million people and the ninth-largest metropolitan area in the nation. Atlanta is the seat of the most populous county in Georgia. A small portion of the city extends eastward into neighboring DeKalb County. Atlanta was founded as the terminating stop of a major state-sponsored railroad. With rapid expansion, however, it soon became the convergence point between multiple railroads, spurring its rapid growth; the city's name derives from that of the Western and Atlantic Railroad's local depot, signifying the town's growing reputation as a transportation hub. During the American Civil War, the city was entirely burned to the ground in General William T. Sherman's famous March to the Sea. However, the city rose from its ashes and became a national center of commerce and the unofficial capital of the "New South".
During the 1950s and 1960s, Atlanta became a major organizing center of the civil rights movement, with Dr. Martin Luther King Jr. Ralph David Abernathy, many other locals playing major roles in the movement's leadership. During the modern era, Atlanta has attained international prominence as a major air transportation hub, with Hartsfield–Jackson Atlanta International Airport being the world's busiest airport by passenger traffic since 1998. Atlanta is rated as a "beta" world city that exerts a moderate impact on global commerce, research, education, media and entertainment, it ranks in the top twenty among world cities and 10th in the nation with a gross domestic product of $385 billion. Atlanta's economy is considered diverse, with dominant sectors that include transportation, logistics and business services, media operations, medical services, information technology. Atlanta has topographic features that include rolling hills and dense tree coverage, earning it the nickname of "the city in a forest."
Revitalization of Atlanta's neighborhoods spurred by the 1996 Summer Olympics, has intensified in the 21st century, altering the city's demographics, politics and culture. Prior to the arrival of European settlers in north Georgia, Creek Indians inhabited the area. Standing Peachtree, a Creek village where Peachtree Creek flows into the Chattahoochee River, was the closest Indian settlement to what is now Atlanta; as part of the systematic removal of Native Americans from northern Georgia from 1802 to 1825, the Creek were forced to leave the area in 1821, white settlers arrived the following year. In 1836, the Georgia General Assembly voted to build the Western and Atlantic Railroad in order to provide a link between the port of Savannah and the Midwest; the initial route was to run southward from Chattanooga to a terminus east of the Chattahoochee River, which would be linked to Savannah. After engineers surveyed various possible locations for the terminus, the "zero milepost" was driven into the ground in what is now Five Points.
A year the area around the milepost had developed into a settlement, first known as "Terminus", as "Thrasherville" after a local merchant who built homes and a general store in the area. By 1842, the town had six buildings and 30 residents and was renamed "Marthasville" to honor the Governor's daughter. J. Edgar Thomson, Chief Engineer of the Georgia Railroad, suggested the town be renamed Atlanta; the residents approved, the town was incorporated as Atlanta on December 29, 1847. By 1860, Atlanta's population had grown to 9,554. During the American Civil War, the nexus of multiple railroads in Atlanta made the city a hub for the distribution of military supplies. In 1864, the Union Army moved southward following the capture of Chattanooga and began its invasion of north Georgia; the region surrounding Atlanta was the location of several major army battles, culminating with the Battle of Atlanta and a four-month-long siege of the city by the Union Army under the command of General William Tecumseh Sherman.
On September 1, 1864, Confederate General John Bell Hood made the decision to retreat from Atlanta, he ordered the destruction of all public buildings and possible assets that could be of use to the Union Army. On the next day, Mayor James Calhoun surrendered Atlanta to the Union Army, on September 7, Sherman ordered the city's civilian population to evacuate. On November 11, 1864, Sherman prepared for the Union Army's March to the Sea by ordering the destruction of Atlanta's remaining military assets. After the Civil War ended in 1865, Atlanta was rebuilt. Due to the city's superior rail transportation network, the state capital was moved from Milledgeville to Atlanta in 1868. In the 1880 Census, Atlanta surpassed Savannah as Georgia's largest city. Beginning in the 1880s, Henry W. Grady, the editor of the Atlanta Constitution newspaper, promoted Atlanta to potential investors as a city of the "New South" that would be based upon a modern economy and less reliant on agriculture. By 1885, the founding of the Georgia School of Technology and the Atlanta University Center had established Atlanta as a center for higher education.
In 1895, Atlanta hosted the Cotton States and International Exposition, which attracted nearly 800,000 attendees and promoted the New South's development to the world. During the first decades of the 20th century, Atlanta experienced a period of unprecedented growth. In three decades' time, Atlanta's population tripled as the city limits expanded to include nearby streetcar suburbs; the city's skyline emerged with the construction of the
Duluth is a major port city in the U. S. state of Minnesota and the county seat of Saint Louis County. Duluth is the 4th largest city in Minnesota, it is the 2nd largest city on Lake Superior. The largest is Thunder Bay, Canada, it has the largest metropolitan area on the lake, with a population of 279,771 in 2010, the second-largest in the state. Situated on the north shore of Lake Superior at the westernmost point of the Great Lakes, Duluth is accessible to oceangoing vessels from the Atlantic Ocean 2,300 miles away via the Great Lakes Waterway and the Saint Lawrence Seaway. Duluth forms a metropolitan area with Wisconsin; the cities share the Duluth–Superior harbor and together are the Great Lakes' largest port, transporting coal, iron ore, grain. A tourist destination for the Midwest, Duluth features the United States' only all-freshwater aquarium, the Great Lakes Aquarium; the city is the starting point for vehicle trips along Minnesota's North Shore. The city is named for Daniel Greysolon, Sieur du Lhut, the first known European explorer of the area.
The Anishinaabe known as the Ojibwe or Chippewa, have inhabited the Lake Superior region for more than 500 years. They were preceded by the Dakota, Menominee and Gros Ventre peoples, whom they pushed out of the area. Established as traders, after the arrival of Europeans, the Anishinaabe found a niche as the middlemen between the French fur traders and other Native peoples, they soon became the dominant Indian nation in the region, forcing out the Dakota Sioux and Fox and winning a victory against the Iroquois west of Sault Ste. Marie in 1662. By the mid-18th century, the Ojibwe occupied all of Lake Superior's shores. For both the Ojibwe and the Dakota, interaction with Europeans during the contact period revolved around the fur trade and related activities; the Ojibwe are known for their crafting of birch bark canoes, use of copper arrow points, cultivation of wild rice. In 1745, they adopted guns from the British for use against the Dakota nation of the Sioux, whom they pushed to the south; the Ojibwe Nation was the first to set the agenda with European-Canadian leaders for signing more detailed treaties before many European settlers were allowed too far west.
The settlement in Ojibwe is Onigamiinsing, a reference to the small and easy portage across Minnesota Point between Lake Superior and western Saint Louis Bay, which forms Duluth's harbor. According to Ojibwe oral history, Spirit Island, near the Spirit Valley neighborhood, was the "Sixth Stopping Place", where the northern and southern branches of the Ojibwe Nation came together and proceeded to their "Seventh Stopping Place" near the present city of La Pointe, Wisconsin; the "Stopping Places" were the places the Native Americans occupied during their westward migration as the Europeans overran their territory. Several factors brought fur traders to the Great Lakes in the early 17th century; the fashion for beaver hats in Europe generated demand for pelts. French trade for beaver in the lower Saint Lawrence River had led to the depletion of the animals in that region by the late 1630s, so the French searched farther west for new resources and new routes, making alliances with the Native Americans along the way to trap and deliver their furs.
Étienne Brûlé is credited with the European discovery of Lake Superior before 1620. Pierre-Esprit Radisson and Médard des Groseilliers explored the Duluth area, Fond du Lac in 1654 and again in 1660; the French soon established fur posts near Duluth and in the far north where Grand Portage became a major trading center. The French explorer Daniel Greysolon, Sieur du Lhut, whose name is sometimes anglicized as "DuLuth", explored the Saint Louis River in 1679. After 1792 and the independence of the United States, the North West Company established several posts on Minnesota rivers and lakes, in areas to the west and northwest, for trading with the Ojibwe, the Dakota, other native tribes; the first post was where Superior, Wisconsin developed. Known as Fort Saint Louis, the post became the headquarters for North West's new Fond du Lac Department, it had stockaded walls, two houses of 40 feet each, a shed of 60 feet, a large warehouse, a canoe yard. Over time, Indian peoples and European Americans settled nearby, a town developed at this point.
In 1808, the American Fur Company was organized by German-born John Jacob Astor. The company began trading at the Head of the Lakes in 1809. In 1817, it erected a new headquarters at present-day Fond du Lac on the Saint Louis River. There, portages connected Lake Superior with Lake Vermillion to the north, with the Mississippi River to the south. After creating a powerful monopoly, Astor got out of the business about 1830, as the trade was declining, but active trade was carried on until the failure of the fur trade in the 1840s. European fashions had changed and many American areas were getting over-trapped, with game declining. Two Treaties of Fond du Lac were signed by natives with the United States in the present neighborhood of Fond du Lac in 1826 and 1847, by which the Ojibwe ceded land to the American government; as part of the Treaty of Washington with the Lake Superior Band of Chippewa, the United States set aside the Fond du Lac Indian Reservation upstream from Duluth near Cloquet, Minnesota.
The Ojibwe population was moved there. As European Americans continued to settle and encroach on Ojibwe lands, the U. S. gove
2010 United States Census
The 2010 United States Census is the twenty-third and most recent United States national census. National Census Day, the reference day used for the census, was April 1, 2010; the census was taken via mail-in citizen self-reporting, with enumerators serving to spot-check randomly selected neighborhoods and communities. As part of a drive to increase the count's accuracy, 635,000 temporary enumerators were hired; the population of the United States was counted as 308,745,538, a 9.7% increase from the 2000 Census. This was the first census in which all states recorded a population of over half a million, as well as the first in which all 100 largest cities recorded populations of over 200,000; as required by the United States Constitution, the U. S. census has been conducted every 10 years since 1790. The 2000 U. S. Census was the previous census completed. Participation in the U. S. Census is required by law in Title 13 of the United States Code. On January 25, 2010, Census Bureau Director Robert Groves inaugurated the 2010 Census enumeration by counting World War II veteran Clifton Jackson, a resident of Noorvik, Alaska.
More than 120 million census forms were delivered by the U. S. Post Office beginning March 15, 2010; the number of forms mailed out or hand-delivered by the Census Bureau was 134 million on April 1, 2010. Although the questionnaire used April 1, 2010 as the reference date as to where a person was living, an insert dated March 15, 2010 included the following printed in bold type: "Please complete and mail back the enclosed census form today." The 2010 Census national mail participation rate was 74%. From April through July 2010, census takers visited households that did not return a form, an operation called "non-response follow-up". In December 2010, the U. S. Census Bureau delivered population information to the U. S. President for apportionment, in March 2011, complete redistricting data was delivered to states. Identifiable information will be available in 2082; the Census Bureau did not use a long form for the 2010 Census. In several previous censuses, one in six households received this long form, which asked for detailed social and economic information.
The 2010 Census used only a short form asking ten basic questions: How many people were living or staying in this house, apartment, or mobile home on April 1, 2010? Were there any additional people staying here on April 1, 2010 that you did not include in Question 1? Mark all that apply: Is this house, apartment, or mobile home – What is your telephone number? What is Person 1's name? What is Person 1's sex? What is Person 1's age and Person 1's date of birth? Is Person 1 of Hispanic, Latino, or Spanish origin? What is Person 1's race? Does Person 1 sometimes live or stay somewhere else? The form included space to repeat all of these questions for up to twelve residents total. In contrast to the 2000 census, an Internet response option was not offered, nor was the form available for download. Detailed socioeconomic information collected during past censuses will continue to be collected through the American Community Survey; the survey provides data about communities in the United States on a 1-year or 3-year cycle, depending on the size of the community, rather than once every 10 years.
A small percentage of the population on a rotating basis will receive the survey each year, no household will receive it more than once every five years. In June 2009, the U. S. Census Bureau announced. However, the final form did not contain a separate "same-sex married couple" option; when noting the relationship between household members, same-sex couples who are married could mark their spouses as being "Husband or wife", the same response given by opposite-sex married couples. An "unmarried partner" option was available for couples; the 2010 census cost $13 billion $42 per capita. Operational costs were $5.4 billion under the $7 billion budget. In December 2010 the Government Accountability Office noted that the cost of conducting the census has doubled each decade since 1970. In a detailed 2004 report to Congress, the GAO called on the Census Bureau to address cost and design issues, at that time, had estimated the 2010 Census cost to be $11 billion. In August 2010, Commerce Secretary Gary Locke announced that the census operational costs came in under budget.
Locke credited the management practices of Census Bureau director Robert Groves, citing in particular the decision to buy additional advertising in locations where responses lagged, which improved the overall response rate. The agency has begun to rely more on questioning neighbors or other reliable third parties when a person could not be reached at home, which reduced the cost of follow-up visits. Census data for about 22% of U. S. househol
Evan Park Howell was an American politician and early telegraph operator, as well as an officer in the Confederate Army during the American Civil War. A native of Warsaw, born to Atlanta pioneer Clark Howell, Sr. he became a runner and pupil of Atlanta's first telegraph operator, D. U. Sloan, at the age of twelve. In 1855 he attended Georgia Military Institute in Marietta, he read law in Sandersville, practiced law in Atlanta before the outbreak of war. In 1861, he joined the infantry. Within 2 years, Howell was promoted to first lieutenant, he fought under Stonewall Jackson in Virginia, was sent west, where he fought in the Battle of Chickamauga and the Atlanta Campaign, in which he defended the city as a captain of artillery. He ended the war in Hardee's Corps as captain of Georgia Light Artillery. Upon his return, he farmed for two years and selling lumber on his father's land near Atlanta. For a year he was a reporter city editor, of Atlanta's Daily Intelligencer. In 1869 he returned to practicing law and served in a number of political positions including member of city council, member of the state Senate, solicitor-general of the Atlanta circuit.
One of his law clients was the Constitution where he learned E. Y. Clarke was willing to sell part of his interest in the paper. In 1876 he purchased a controlling interest in the Atlanta Constitution and became its editor-in-chief. With Richard Peters, Samuel M. Inman, Lemuel Grant, James W. English, he purchased the buildings on the site of the International Cotton Exposition of 1881 and made it the Exposition Cotton Mills, which were successful for many years. While editor of the Constitution in 1895, he sent out transcripts of Booker T. Washington's separate as the fingers speech across the country, he served on the Atlanta city council numerous times and served as mayor shortly before his death at age 66. His son Clark Howell took up his mantel at the Constitution
War of 1812
The War of 1812 was a conflict fought between the United States, the United Kingdom, their respective allies from June 1812 to February 1815. Historians in Britain see it as a minor theater of the Napoleonic Wars. From the outbreak of war with Napoleonic France, Britain had enforced a naval blockade to choke off neutral trade to France, which the US contested as illegal under international law. To man the blockade, Britain impressed American merchant sailors into the Royal Navy. Incidents such as the Chesapeake–Leopard affair, which happened five years before the war, inflamed anti-British sentiment in the US. In 1811, the British were in turn outraged by the Little Belt affair, in which 11 British sailors died. Britain supplied Native Americans who raided American settlers on the frontier, hindering American expansion and provoking resentment. Historians debate whether the desire to annex some or all of British North America contributed to the American decision to go to war. On June 18, 1812, US President James Madison, after heavy pressure from the War Hawks in Congress, signed the American declaration of war into law.
With most of its army in Europe fighting Napoleon, Britain adopted a defensive strategy, with offensive operations limited to the border, the western frontier. American prosecution of the war effort suffered from its unpopularity in New England, where it was derogatorily referred to as "Mr. Madison's War". American defeats at the Siege of Detroit and the Battle of Queenston Heights thwarted attempts to seize Upper Canada, improving British morale. American attempts to invade Lower Canada and capture Montreal failed. In 1813, the Americans won the Battle of Lake Erie, gaining control of the lake, at the Battle of the Thames defeated Tecumseh's Confederacy, securing a primary war goal. A final American attempt to invade Canada was fought to a draw at the Battle of Lundy's Lane during the summer of 1814. At sea, the powerful Royal Navy blockaded American ports, cutting off trade and allowing the British to raid the coast at will. In 1814, one of these raids burned the capital, but the Americans repulsed British attempts to invade New York and Maryland, ending invasions of the northern and mid-Atlantic United States from Canada.
Fighting took place overseas in the Atlantic and Pacific oceans. In neighbouring Spanish Florida, a two-day battle for the city of Pensacola ended in Spanish surrender. In Britain, there was mounting opposition to wartime taxation. With the abdication of Napoleon, the war with France ended and Britain ceased impressment, rendering the issue of the impressment of American sailors moot; the British were able to increase the strength of the blockade on the United States coast, annihilating American maritime trade, but attempts to invade the U. S. ended unsuccessfully. Peace negotiations began in August 1814, the Treaty of Ghent was signed on December 24. News of the peace did not reach America for some time. Unaware of the treaty, British forces invaded Louisiana and were defeated at the Battle of New Orleans in January 1815; these late victories were viewed by Americans as having restored national honour, leading to the collapse of anti-war sentiment and the beginning of the Era of Good Feelings, a period of national unity.
News of the treaty arrived shortly thereafter. The treaty was unanimously ratified by the US Senate on February 17, 1815, ending the war with no boundary changes. Historians have long debated the relative weight of the multiple reasons underlying the origins of the War of 1812; this section summarizes several contributing factors which resulted in the declaration of war by the United States. As Risjord notes, a powerful motivation for the Americans was the desire to uphold national honour in the face of what they considered to be British insults such as the Chesapeake–Leopard affair. H. W. Brands says, "The other war hawks spoke of the struggle with Britain as a second war of independence; the approaching conflict was about violations of American rights, but it was about vindication of American identity." Americans at the time and historians since have called it the United States' "Second War of Independence". The British were offended by what they considered insults such as the Little Belt affair.
This gave the British a particular interest in capturing the United States flagship President, which they succeeded in doing in 1815. In 1807, Britain introduced a series of trade restrictions via the Orders in Council to impede neutral trade with France, which Britain was fighting in the Napoleonic Wars; the United States contested these restrictions as illegal under international law. Historian Reginald Horsman states, "a large section of influential British opinion, both in the government and in the country, thought that America presented a threat to British maritime supremacy."The American merchant marine had nearly doubled between 1802 and 1810, making it by far the largest neutral fleet. Britain was the largest trading partner, receiving 80% of U. S. cotton and 50% of other U. S. exports. The British public and press were resentful of commercial competition; the United States' view was. During the Napoleonic Wars, the Royal Navy expanded to 176 ships of the line and 600 ships overall, requiring 140,000 sailors to man.
While the Royal Navy could man its ships with volunteers in peacetime, it competed in wartime with merchant shi
A ZIP Code is a postal code used by the United States Postal Service in a system it introduced in 1963. The term ZIP is an acronym for Zone Improvement Plan; the basic format consists of five digits. An extended ZIP+4 code was introduced in 1983 which includes the five digits of the ZIP Code, followed by a hyphen and four additional digits that reference a more specific location; the term ZIP Code was registered as a servicemark by the U. S. Postal Service, but its registration has since expired; the early history and context of postal codes began with postal district/zone numbers. The United States Post Office Department implemented postal zones for numerous large cities in 1943. For example: The "16" was the number of the postal zone in the specific city. By the early 1960s, a more organized system was needed, non-mandatory five-digit ZIP Codes were introduced nationwide on July 1, 1963; the USPOD issued its Publication 59: Abbreviations for Use with ZIP Code on October 1, 1963, with the list of two-letter state abbreviations which are written with both letters capitalized.
An earlier list in June had proposed capitalized abbreviations ranging from two to five letters. According to Publication 59, the two-letter standard was "based on a maximum 23-position line, because this has been found to be the most universally acceptable line capacity basis for major addressing systems", which would be exceeded by a long city name combined with a multi-letter state abbreviation, such as "Sacramento, Calif." along with the ZIP Code. The abbreviations have remained unchanged, with the exception of Nebraska, changed from NB to NE in 1969 at the request of the Canadian postal administration, to avoid confusion with the Canadian province of New Brunswick. Robert Moon is considered the father of the ZIP Code; the post office only credits Moon with the first three digits of the ZIP Code, which describe the sectional center facility or "sec center." An SCF is a central mail processing facility with those three digits. The fourth and fifth digits, which give a more precise locale within the SCF, were proposed by Henry Bentley Hahn Sr.
The SCF sorts mail to all post offices with those first three digits in their ZIP Codes. The mail is sorted according to the final two digits of the ZIP Code and sent to the corresponding post offices in the early morning. Sectional centers do not deliver mail and are not open to the public, most of their employees work the night shift. Mail picked up at post offices is sent to their own SCF in the afternoon, where the mail is sorted overnight. In the case of large cities, the last two digits coincide with the older postal zone number thus: In 1967, these became mandatory for second- and third-class bulk mailers, the system was soon adopted generally; the United States Post Office used a cartoon character, which it called Mr. ZIP, to promote the use of the ZIP Code, he was depicted with a legend such as "USE ZIP CODE" in the selvage of panes of postage stamps or on the covers of booklet panes of stamps. In 1971 Elmira Star-Gazette reporter Dick Baumbach found out the White House was not using a ZIP Code on its envelopes.
Herb Klein, special assistant to President Nixon, responded by saying the next printing of envelopes would include the ZIP Code. In 1983, the U. S. Postal Service introduced an expanded ZIP Code system that it called ZIP+4 called "plus-four codes", "add-on codes", or "add-ons". A ZIP+4 Code uses the basic five-digit code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a city block, a group of apartments, an individual high-volume receiver of mail, a post office box, or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery. However, initial attempts to promote universal use of the new format met with public resistance and today the plus-four code is not required. In general, mail is read by a multiline optical character reader that instantly determines the correct ZIP+4 Code from the address—along with the more specific delivery point—and sprays an Intelligent Mail barcode on the face of the mail piece that corresponds to 11 digits—nine for the ZIP+4 Code and two for the delivery point.
For Post Office Boxes, the general rule is. The add-on code is one of the following: the last four digits of the box number, zero plus the last three digits of the box number, or, if the box number consists of fewer than four digits, enough zeros are attached to the front of the box number to produce a four-digit number. However, there is no uniform rule, so the ZIP+4 Code must be looked up individually for each box; the ZIP Code is translated into an Intelligent Mail barcode, printed on the mailpiece to make it easier for automated machines to sort. A barcode can be printed by the sender, it is better to let the post office put one on. In general, the post office uses OCR technology, though in some cases a human might have to read and enter the address. Customers who send bulk mail can get a discount on postage if they have printed the barcode themselves and have presorted the mai