Green is for Go, Red is for Stop, Yellow is for Go Very Fast!

Today is the 101st anniversary of the very first electric traffic light! The Google Doodle is pretty cool:

Learn more - When was the first traffic light installed? Today in 1914. Vox's article contains lots of neat visuals, including a video, A Trip Down Market Street, 1906 - With Sound! I can't imagine this working well at 50 mph...


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