Traffic Lights- 101st Anniversary

Really short of time today and ideas for a blip when I remembered using Google at work this morning to look something up .......then a light bulb moment so ............I-phone out of the car window while stationary and I had today's blip
Today's Google doodle depicts the first electric traffic lights which were installed 101 years ago, these were installed and put into major use in Clevland, Ohio, on August 5 1914.
The first ever traffic lights were unveiled in London in the late 19th century, and placed outside the Houses of Parliament.
Non-electric and gas-operated, police officers had to work the lights by hand in a bid to control vehicles crossing on nearby Bridge Street, Great George Street and Parliament Street.
Many thanks to Google