December 7 is the 341st day (342nd on leap years) of the year. There are 24 days remaining.
- 521 - Saint Columba, Christian missionary
- 1670 - John Aislabir, English politician
- 1873 - Willa Cather, American novelist
- 1928 - Noam Chomsky, linguist
- 1932 - Ellen Burstyn, actress
- 1947 - Johnny Bench, Baseball Hall-of-famer
- 1949 - Tom Waits, singer, composer, actor
- 1956 - Larry Bird, basketball player
- 1787 - Delaware becomes the first state to ratify the US Constitution.
- 1796 - John Adams becomes the second president of the United States.
- 1896 - Martin Van Buren becomes the eighth president of the United States.
- 1903 - Orville Wright flies the first aircraft with a petrol engine.
- 1941 - The Japanese attack on Pearl Harbor brings the United States officially into World War II