December 6 is the 340th day (341st on leap years) of the year. There are 25 days remaining.
- 1770 - Ludwig van Beethoven, composer
- 1898 - Alfred Eisenstaedt, German photojournalist
- 1920 - Dave Brubeck, jazz musician
- 1939 - Liv Ullman, Norwegian actress
- 1790 - Congress moved from New York City to Philadelphia.
- 1884 - Washington Monument completed.
- 1917 - Finland declared its independence.
- 1947 - Everglades National Park in Florida was dedicated.
Holidays and Observances:
- Saint Nicholas day. Celebrations may begin the previous afternoon.