The first documented use of the phrase "United States of America" is a letter from January 2, 1776. Stephen Moylan, a Continental Army aide to General George Washington, wrote to Joseph Reed, Washington's … See more

The first inhabitants of North America migrated from Siberia across the Bering land bridge at least 12,000 years ago; the Clovis culture, which appeared around 11,000 BC, is believed to be the first widespread culture in th… See more

The United States is the world's third-largest country by total area behind Russia and Canada. The 48 contiguous states and the District of Columbia occupy a combined area of 3,119,885 square miles (8,080,470 km ). The … See more