United States

U.S.

Flag Great Seal
Motto: In God We Trust (official)
E Pluribus the (traditional)
(Latin: Out of Many, One)
Anthem: "Star-Spangled Banner"
Menu0: 00

Capital, Washington, DC
38 ° 53'N 77 ° 01'W
The largest city in New York
The official language is not a federal level [a]
National language English (de facto) [b]
Demonym American
President of the Federal Constitutional Republic,
Two-party system
- President Barack Obama (D)
- Vice President Joe Biden (D)
- The Speaker of the House John Boehner (R)
- Chief Justice John Roberts
The Congress
- Senate Senate
- Lower House of Representatives
Independence from Britain
- Declared July 4, 1776
- Recognized September 3, 1783
- The current constitution June 21, 1788 AD
Field
- Total 9,826,675 km2 [1] [c] (3rd/4th)
3,794,101 miles square
- Water (%) 6.76
Population
- Estimate 315 137 000 2012 [2] (3)
- Density 33.7/km2
87.4/sq miles
GDP (PPP) 2011 estimate
- Total $ 15.094 billion [3] (1)
- Per capita $ 48,386 [3] (6)
GDP (nominal) 2011 estimate
- Total $ 15.094 billion [3] (1)
- Per capita $ 48,386 [3] (15th)
Guinea (2007) 45.0 [1] / 39)
HDI (2011) 0.910 [4] (too high / 4th)
Currency: U.S. Dollar ($) (USD)
Time zone (UTC-5 -10)
- Summer (DST) (UTC-4 -10 [e])
Date format mm / dd / yy (AD)
RHD
Call a code
ISO-3166 U.S. Code
Internet TLD. Our. Gov. Match. Edu
^ A. English to at least 28 - some sources indicate more "official" statistics' s based on different definitions. [5] English and Hawaiian are both official languages ​​in the state of Hawaii. An official language
^ B. English is the only language of the U.S. government and 80 percent of Americans age five and older de facto language spoken at home. Spanish is the second most spoken language.
^ C. If the United States or China is larger is disputed. The figure given is from the U.S. phyaktabuka Photos Central Intelligence Agency. Statistics from other sources to pay. All calculations of the standard size of the country are only the 50 states and the District of Columbia area.
^ D. The estimated population of the District of Columbia and whose habitual residence is in the fifty states, regardless of their nationality. It does not include people living in the region, totaling 4 million people (mostly in Puerto Rico).
^ E. For more information about the time zone of the United States of America United States of America during the see.
^ F. And the insular areas of the United States Minor Outlying Islands, which do not include your own code ISO-3166.
America (USA) in the United States in general, the United States (American or U.S.) and the United States is a federal constitutional republic comprising fifty states and a federal district. [1] Central tathyaprayuktibida most countries in North America, where his forty-eight contiguous states and Washington, DC, the capital district, are located between the Pacific and Atlantic Oceans, bordered by Canada to Mexico on the south and North. Alaska is a state in northwest continent, with Canada and Russia to the west across the Bering Strait. The state of Hawaii is an archipelago in the Pacific Ocean. In addition, the Pacific and the Caribbean in the region has. 3,790,000 miles square (9.83 million km2) and with 315 million people in the United States in the third or fourth largest country by total area, and the third largest in land area and by population. It is one of the most ethnically diverse nations and multicultural world, large-scale immigration from many countries. [6] The United States has a very diverse geography and climate, and is also home to a variety of species.
Paleoindian Asia about 15,000 years ago in what is now moved to the continental United States. After the 1500's, particularly the Old Photos diseases introduced by Europeans to reduce their population. European colonization began and were mainly from England around 1600. Thirteen British Atlantic coast of the United States, which developed along their own economies and democratic political systems is emitted from the colony. A conflict between Britain and the American colonies in the Revolutionary War. July 4, 1776 delegates unanimously in the 13 colonies declared their independence, which was established in the United States issued. French aid to Britain with a new country, which became the first success in the defeat of the revolutionary war against a European empire, [7] [8] The current Constitution September 17, 1787 is taken on,. After several amendments were added to the Constitution, but the effect does not change the original text. The first ten amendments, collectively called rights, guaranteeing many fundamental civil rights and freedoms bill, approved in 1791.
Vigorous expansion in North America during the 19th century in the United States embarked on, displacing native tribes, acquired new territories, and gradually admitting new state. American Civil War ended slavery in the United States legalized. In the late nineteenth century, America was the world's largest national economy. [9] The Spanish - American War and World War I, the country's status as a global military power to make sure. After World War II the United States the first country with nuclear weapons and a permanent member of the Security Council of the UN, as will be seen. The end of the Cold War and the dissolution of the Soviet Union left the United States as the sole superpower.
The industry in the U.S. is a developed country and an estimated $ 15.1 trillion by 2011 GDP (nominal global GDP and 22% of its purchasing power parity - over 19% of world GDP), including the largest national economy in the world ,. [3] [10] The income per capita is the sixth in the world - the maximum [3] economics of natural resources, a well - developed infrastructure, and high production rate by an abundance of it. And when the economy is considered by the industry as it is one of the main developers of the world. Represent 41% of global military spending, [11] and a leading force in the economic, political and cultural, as well as a leader in scientific research and technological innovation.