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jan 1, 1868 - Traffic Light

Description:

THE FIRST traffic signal was invented by J P Knight, a railway signalling engineer. It was installed outside the Houses of Parliament in 1868 and looked like any railway signal of the time, with waving semaphore arms and red-green lamps, operated by gas, for night use. Unfortunately it exploded, killing a policeman.

Added to timeline:

21 Sep 2017
0
0
160
Industrialization

Date:

jan 1, 1868
Now
~ 151 years ago
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