11/20/2013
Fun Fact: Did you know that on this day in 1923, Garret Morgan patented the three-position traffic signal? His legacy lives on! Happy Wednesday!
http://www.history.com/this-day-in-history/garrett-morgan-patents-three-position-traffic-signal
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.