
The United States of America is a federal constitutional republic comprising fifty states and a federal district. The country is situated almost entirely in the western hemisphere: its forty-eight contiguous states and Washington, D.C., the capital district, lie in central North America between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south; the state of Alaska is in the northwest of the continent with Canada to its east, and the state of Hawaii is in the mid-Pacific. The United States also possesses fourteen territories, or insular areas, that are scattered around the Caribbean and Pacific.
At 3.79 million square miles (9.83 million km²) and with over 300 million people, the United States is the third or fourth largest country by total area, and third largest by land area and by population. The United States is one of the world's most ethnically diverse nations, the product of large-scale immigration from many countries. Its national economy is the largest in the world, with a nominal 2006 gross domestic product (GDP) of more than US$13 trillion.
The nation was founded by the thirteen colonies of Great Britain located along the Atlantic seaboard. After proclaiming themselves as "states," they issued the Declaration of Independence on July 4, 1776. The rebellious states defeated Britain in the American Revolutionary War, the first successful colonial war of independence.
A federal convention adopted the current United States Constitution on September 17, 1787; its ratification the following year made the states part of a single republic. The Bill of Rights, comprising ten constitutional amendments, was ratified in 1791. In the nineteenth century, the United States acquired land from France, Spain, Mexico, and Russia, and annexed the Republic of Texas and the Republic of Hawaii. The American Civil War ended slavery in the United States and prevented a permanent split of the country. The Spanish-American War and World War I confirmed its status as a military power. In 1945, the United States emerged from World War II as the first country with nuclear weapons and a permanent member of the United Nations Security Council. The sole remaining superpower in the post–Cold War era, the United States is perceived by many as the dominant economic, political, cultural, and military force in the world
The State of Indiana is the 19th U.S. state and is located in the midwestern region of the United States of America. With about 6.3 million residents, it is ranked 14th in population and 17th in population density. Indiana is ranked 38th in land area.
Indiana is a diverse state with a few large urban areas and a number of smaller industrial cities. It is known for the Indianapolis 500 automobile race, held annually over the Memorial Day weekend, and a strong basketball tradition, often called Hoosier Hysteria.
Residents of Indiana are called Hoosiers. There are several ideas about the origin of the name. Linguists have traced it to England, where in one dialect it meant "farmer." Others have traced it to the Indiana workers who crossed the Ohio River to work for Sam Hoosier during construction of the Louisville and Portland Canal; these workers were known as "Hoosier's Men." Another story told to Indiana youths is that in the early 1800s, bar fights would break out in Indiana saloons, with many a man losing an ear. Someone would pick it up and ask "Whose ear?", which somehow evolved into Hoosier.
The state's name means "Land of the Indians" and Angel Mounds State Historic Site, one of the best preserved prehistoric Native American sites in the United States, can be found in southern Indiana near Evansville.
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