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1923 - Garrett Morgan of Cleveland invented the first three-position traffic light.

News
November 20, 1923:

On this day in 1923, the U.S. Patent Office grants Patent No. 1,475,074 to 46-year-old inventor and newspaperman Garrett Morgan for his three-position traffic signal. Though Morgan's was not the first traffic signal (that one had been installed in London in 1868), it was an important innovation nonetheless: By having a third position besides just "Stop" and "Go," it regulated crossing vehicles more safely than earlier signals had.

www.history.com/ this-day-in-history/ garrett-morgan-patents- three-position-traffic-signal

November 20, 1923

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Cleveland, Ohio, USA

Cleveland, Ohio, USA

Cleveland, Ohio, USA

Cleveland, Ohio, USA

Cleveland, Ohio, USA

Cleveland, Ohio, USA

Cleveland, Ohio, USA

Cleveland, Ohio, USA

Cleveland, Ohio, USA

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