STOP for Stop Sign History - Your AAA Network
https://magazine.northeast.aaa.com/daily/life/cars-trucks/auto-history/stop-sign-history/
WEBApr 20, 2023 · Stop Sign History Begins. The first stop sign in America was installed in Detroit, Mich., in 1915, although it would be unrecognizable to a driver today. It was a 2′ x 2′ white square sign with black lettering. For the first several years of their existence, stop signs were made in a variety of shapes, sizes and colors.
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