Google is celebrating 101 years of traffic lights by dedicating its doodle to the day.
The animated doodle shows cars with the letters spelling "G-O-O-G-L-E" halting at a red traffic light and then rushing past it as it turns green.
While it was an American policeman Lester Wire, in Utah, who first developed an electric traffic light in 1912 and used red-green lights, the American Traffic Signal Company installed a traffic signal system on the corner of East 105th Street and Euclid Avenue in Cleveland, Ohio two years later on 5 August 1914.