Three-Light Traffic Signal
Before Garrett Morgan, traffic signals only had a stop and go light. Thanks to his addition, car accidents greatly decreased. Morgan is also credited for created the gas mask.
To celebrate #BlackHistoryMonth2018, today we recognize Garrett Morgan for his inventions that included a hair-straightener, a breathing device (which provided the blueprint for WW1 gas asks), a new sewing machine and an improved traffic signal pic.twitter.com/vCXlvtDFJw