David L. Nicholson @LouKyCourtClerk
#OTD in 1923, inventor Garrett Morgan, a #Kentucky native, received a U.S. patent for his 3-position traffic signal.🚦 After having witnessed a serious accident at an intersection, he designed his traffic control device with a 3rd "warning" position. @KYTC @kyhighwaysafety @KACo https://t.co/PR6nA3oiPZ — PolitiTweet.org