Did a black man invent the traffic light?
The Three-Light Traffic Light, Invented by Garrett Morgan in 1923. With only an elementary school education, Black inventor (and son of an enslaved parent), Garrett Morgan came up with several significant inventions, including an improved sewing machine and the gas mask.
In 1920, he started a newspaper for African Americans, The Cleveland Call, and opened an all-black country club. In 1923, he patented a mechanical traffic signal that he sold to General Electric.