December 10th (1799) was a Tuesday. It's the 344th day of the year (345th in leap years) in the Gregorian calendar. There are 21 days left to the end of the year.
Historical Events for 10th December, 1799
» France adopts the metre as its official unit of length.
December 10th Holidays in History
» Flag days in Sweden named Alfred Nobel Day or 'Nobeldagen' (Sweden)