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Cleveland, Ohio, is widely credited as having the first stoplight. James Hoge, an engineer, hooked up the first traffic light to the trolley line's electricity in 1914, using the red and green lights that were already familiar from their use by railroads. The light was controlled by a policeman in a booth nearby, who would flip the switch between red and green. The yellow light didn't come until later; it was an invention of William Potts, a Detroit police officer.

Technically, there were several experiments with traffic lights before Hoge's success in Cleveland, but none of them took off like his did.

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Jesse Barrows

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โˆ™ 2020-06-01 20:25:03
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โˆ™ 2020-06-11 18:31:10
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โˆ™ 2020-06-12 10:53:31
You rock Jesse!๐Ÿ™Œ thanks now I can do my homework. I am age nine and I love footy!Awesome is footy!๐Ÿ™Œ๐Ÿ™Œ๐Ÿ™Œ
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