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.
United States Government Constitution established on the 17th of September in 1787, effective 4 March 1789
Washington DC Latitude Facts: 38.8964 and Washington DC Longitude Facts: -77.0262
United States People HIV/AIDS - deaths 17,011 (2005 estimate)
United States People Nationality noun: American(s); adjective: American
United States Economy Economic aid - donor ODA, $23.53 billion (2006)