Wapakoneta (Wapaughkonnetta)

Historical marker location:

Wapakoneta, Ohio

( Marker is on Willipie Street (Ohio Route 198) 0.1 miles north of US 33, on the right when traveling north.)

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.