
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
New York (IPA: /ˌnjuːˈjɔrk/) is a state in the Mid-Atlantic and Northeastern regions of the United States of America. With 62 counties, it is the country's third most populous state. It is bordered by Vermont, Massachusetts, Connecticut, New Jersey, and Pennsylvania, and shares a water border with Rhode Island as well as an international border with the Canadian provinces of Quebec and Ontario. Its five largest cities are New York City (also the largest city in the United States), Buffalo, Rochester, Yonkers, and Syracuse. New York City is known for its history as a gateway for immigration to the United States and its status as a financial, cultural, transportation, and manufacturing center.
New York was inhabited by Algonquian, Iroquois, and Lenape indigenous people at the time Dutch and French nationals moved into the region in the very early 17th century. First claimed by Henry Hudson in 1609, the region came to have Dutch forts in Fort Orange, near the site of the present-day capital of Albany in 1614 and was colonized by the Dutch in 1624, at both Albany and Manhattan; it later fell to British annexation in 1664. About one third of all of the battles of the Revolutionary War took place in New York. The state ratified the United States Constitution in 1788, the 11th state to do so; its own constitution was enacted in 1777.
New York's gross state product in 2006 was $1.02 trillion, ranking third in size behind the larger states of California and Texas. If New York were an independent nation, it would rank as the 16th largest economy in the world behind South Korea. Its 2005 per capita personal income was $40,072, an increase of 4.2% from 2004, placing it fifth in the nation behind Maryland, and eighth in the world behind Ireland. New York's agricultural outputs are dairy products, cattle and other livestock, vegetables, nursery stock, and apples. Its industrial outputs are printing and publishing, scientific instruments, electric equipment, machinery, chemical products, and tourism.
New York exports a wide variety of goods such as foodstuffs, commodities, minerals, manufactured goods, cut diamonds, and automobile parts. New York's five largest export markets in 2004 were Canada ($30.2 billion), United Kingdom ($3.3 billion), Japan ($2.6 billion), Israel ($2.4 billion), and Switzerland ($1.8 billion). New York's largest imports are oil, gold, aluminum, natural gas, electricity, rough diamonds, and lumber.
Canada is a very important economic partner for the state. 23% of the state's total worldwide exports went to Canada in 2004. Tourism from the north is also a large part of the economy. Canadians spent US$487 million in 2004 while visiting the state.
New York City is the leading center of banking, finance and communication in the United States and is the location of the New York Stock Exchange, the largest stock exchange in the world by dollar volume. Many of the world's largest corporations are based in the city.
The state also has a large manufacturing sector that includes printing and the production of garments, furs, railroad equipment and bus line vehicles. Many of these industries are concentrated in upstate regions. Albany and the Hudson Valley are major centers of nanotechnology and microchip manufacturing, while the Rochester area is important in photographic equipment and imaging.