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About America

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

About Pennsylvania

     The Commonwealth of Pennsylvania (IPA: /ˌpɛn.səlˈveɪ.njə/) is a state located in the Middle Atlantic region of the United States of America.

     One of Pennsylvania's nicknames is the Quaker State; in colonial times, it was known officially as the Quaker Province, in recognition of Quaker William Penn's First Frame of Government constitution for Pennsylvania that guaranteed liberty of conscience. Penn knew of the hostility Quakers faced when they opposed rituals, oaths, violence, and ostentatious frippery.

     Pennsylvania has also been known as the Keystone State since 1802, based in part upon its central location among the original Thirteen Colonies forming the United States. It was also a keystone state economically, having both the industry common to the North, making such wares as Conestoga wagon and rifles, and the agriculture common to the South, producing feed, fiber, food, and tobacco.

      Pennsylvania has 51 miles (82 km) of coastline along Lake Erie and 57 miles (92 km) of shoreline along the Delaware Estuary. Philadelphia is Pennsylvania's largest city and is home to a major seaport and shipyards on the Delaware River.

    Pennsylvania is 170 miles (274 km) north to south and 283 miles (455 km) east to west. Of a total 46,055 square miles (119,282 km²), 44,817 square miles (116,075 km²) are land, 490 square miles (1,269 km²) are inland waters and 749 square miles (1,940 km²) are waters in Lake Erie. It is the 33rd largest state in the United States. The highest point of 3,213 feet (979 m) above sea level is at Mount Davis, which was named for its owner, John Davis, a schoolteacher who fought for the Union Army at the Battle of Gettysburg. The lowest point is at sea level on the Delaware River, and the approximate mean elevation is 1,100 feet (335 m). Pennsylvania is in the Eastern time zone.

    The original southern boundary of Pennsylvania was supposed to be at 40° North latitude, but as a result of a bad faith compromise by Lord Baltimore during Cresap's War, the king's courts moved the boundary 20 miles (32 km) south to 39° 43' N. The city of Philadelphia, at 40°0'N 75°8'W, would have been split in half by the original boundary. While he was a captive, Cresap, a Marylander, was paraded through Philadelphia. He taunted the officers by announcing that Philadelphia was one of the prettiest towns in Maryland.