The stop sign was invented by Garrett Augustus Morgan. See what other life changing innovations were created by African Americans!
Carter Godwin Woodson originated Negro History Week, which would later become Black History Month, in 1926. February was chosen in honor of Frederick Douglass and Abraham Lincoln, who were both born in that month.
Potato Chips were invented by George Crum in August of 1853. He was trying to fix a complaining customer's order who said his fried potatoes were too thick. Crum ended up slicing the potatoes very thinly, and the customer loved them.
Charles Henry Turner, a zoologist and educator, was the first person to discover that insects can hear.
Garrett Augustus Morgan (1877-1963) invented, among many other things, a 3-way automatic stop sign, which he sold to General Electric. It was used in the U.S. until the 3-light traffic sign was developed.