1. 1789: George Washington was unanimously elected as the first President of the United States by the Electoral College.

2. 1932: The first Winter Olympics in the United States opened in Lake Placid, New York.

3. 1974: The Symbionese Liberation Army kidnapped newspaper heiress Patricia Hearst in Berkeley, California.

4. 2004: The social networking website Facebook was founded by Mark Zuckerberg and his college roommates.

5. 1783: Britain formally declared an end to hostilities with its former colonies, recognizing the United States as an independent nation in the Treaty of Paris.

6. 1941: The United Service Organization (USO) was founded to provide entertainment and services to United States service members and their families.