
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
South Carolina is a state in the southeastern region of the United States of America. The Province of South Carolina was one of the 13 colonies that revolted against British rule in the American Revolution. It was the first state to secede from the Union to found the Confederate States of America. The state is named after King Charles II of England, as Carolus is Latin for Charles. According to 2005 estimates by the U.S. Census Bureau, the state's population is 4,321,249.
South Carolina is bounded to the north by North Carolina; to the south and west by Georgia, located across the Savannah River; and to the east by the Atlantic Ocean.
South Carolina is composed of four geographic areas, whose boundaries roughly parallel the northeast/southwest Atlantic coastline. The lower part of the state is the Coastal Plain, also known as the Lowcountry, which is nearly flat and composed entirely of recent sediments such as sand, silt, and clay. Areas with better drainage make excellent farmland, though some land is swampy. The coastline contains many salt marshes and estuaries, as well as natural ports such as Georgetown and Charleston. An unusual feature of the coastal plain is a large number of Carolina bays, the origins of which are uncertain, though one prominent theory suggests that they were created by a meteor shower. The bays tend to be oval, lining up in a northwest to southeast orientation.
Just west of the coastal plain is the Sand Hills region, which is thought to contain remnants of old coastal dunes from a time when the land was sunken or the oceans were higher.
The Piedmont (Upstate) region contains the roots of an ancient, eroded mountain chain. It tends to be hilly, with thin, stony clay soils, and contains few areas suitable for farming. Much of the Piedmont was once farmed, with little success, and is now reforested. At the southeastern edge of the Piedmont is the fall line, where rivers drop to the coastal plain. The fall line was an important early source of water power, and mills built to harness this resource encouraged the growth of several cities, including the capital, Columbia. The larger rivers are navigable up to the fall line, providing a trade route for mill towns.
The northwestern part of the Piedmont is also known as the Foothills. The Cherokee Parkway is a scenic driving route through this area. This is where Table Rock State Park is located.