Timeline December 1868

Events in December 1868 2

• 1868 First traffic light installed Gas-powered signal installed outside Parliament A gas-lit revolving signal designed by railway engineer J.P. Knight was installed outside the Houses of Parliament in London to control horse-drawn traffic. It used semaphore arms by day and red and green gas lamps by night. The signal exploded weeks later after a gas leak, and traffic signals were not widely readopted until the automobile era.
• 1868 – 1941 Emanuel Lasker Longest reigning World Chess Champion Emanuel Lasker held the World Chess Championship for 27 years from 1894 to 1921, the longest reign in chess history. He combined psychology, positional play and tactical skill.