December 10th (1868) was a Thursday. 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, 1868
» The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use Railway semaphore signal named semaphore arms and are illuminated at night by red and green gas lamps.
December 10th Holidays in History
» Flag days in Sweden named Alfred Nobel Day or 'Nobeldagen' (Sweden)