This YouTube video provides an overview of the key events in the history of the United States from 1492 to 1877. It summarizes that European explorers first arrived in North America in the late 15th century, the original 13 colonies were established along the eastern coast of what would become the U.S., and the country grew significantly larger after gaining independence from Britain and acquiring new territories in the decades following the American Revolution.

57. http://www.youtube.com/watch?v=cfhXMJ93MTk