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World > North America > United States

   flag of United States
   United States

Introduction:
Britain's American colonies broke with the mother country in 1776 and were recognized as the new nation of the United States of America following the Treaty of Paris in 1783. During the 19th and 20th centuries, 37 new states were added to the original 13 as the nation expanded across the North American continent and acquired a number of overseas possessions. The two most traumatic experiences in the nation's history were the Civil War (1861-65) and the Great Depression of the 1930s. Buoyed by victories in World Wars I and II and the end of the Cold War in 1991, the US remains the world's most powerful nation state. The economy is marked by steady growth, low unemployment and inflation, and rapid advances in technology.


Official name: United States of America
Capital: name: Washington, DC
geographic coordinates: 38 53 N, 77 02 W
time difference: UTC-5 (during Standard Time)
daylight saving time: +1hr, begins second Sunday in March; ends first Sunday in November
note: the US is divided into six time zones
Government type: Constitution-based federal republic; strong democratic tradition
Population: 301,139,947 (July 2007 est.)
Languages: English 82.1%, Spanish 10.7%, other Indo-European 3.8%, Asian and Pacific island 2.7%, other 0.7% (2000 census)
note: Hawaiian is an official language in the state of Hawaii
Official Currency: US Dollar (USD)

Current US Dollar Exchange Rates
Historical US Dollar Exchange Rates
Chart US Dollar Exchange Rates
Currency code: USD
Area: total: 9,826,630 sq km
land: 9,161,923 sq km
water: 664,707 sq km
note: includes only the 50 states and District of Columbia
Climate: mostly temperate, but tropical in Hawaii and Florida, arctic in Alaska, semiarid in the great plains west of the Mississippi River, and arid in the Great Basin of the southwest; low winter temperatures in the northwest are ameliorated occasionally in January and February by warm chinook winds from the eastern slopes of the Rocky Mountains


Map of United States
map of United States


Facts at a Glance: Geography - People - Government - Economy - Communications - Transportation - Military - Climate - Current Time - Ranking Positions - US Dollar Exchange Rates



Facts at a Glance
Geography
People
Government
Economy
Communications
Transportation
Military
Climate
Current Time
Ranking Positions
US Dollar Exchange Rates







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