Sonnenberg Settlement 1819

Historical marker location:

13526 Hackett Rd, Apple Creek, Ohio

( Marker is on Hackett Road east of Kidron Road (County Route 52), on the right when traveling east.)

Marker installed: 2018

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.