Hog Barn, 1913

Historical marker location:

13660 County Home Rd, Bowling Green, Ohio

( Marker is on County Home Road (County Road 172) east of Linwood Road (County Road 236), on the left when traveling west.)

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.