Historical Marker
The Town Plat / The Tharp House
Historical marker location:
9/11 East Main Street, Lebanon, Ohio
( Marker is at the intersection of Main Street (Ohio Route 123) and Broadway (Ohio Route 48), on the right when traveling east on Main Street.)
The first traffic light in the world was installed in Cleveland, Ohio, in 1914. It had only two colors, red and green, and was manually operated by a police officer.