Remarkable Ohio


Below is a complete listing of all Ohio Historical Markers. To find a detailed marker listing including text, photographs, and locations, click on a county below. Our listing is updated by the markers program as new markers are installed and older markers are reported damaged or missing.

36-31 Procter & Gamble

Side A: Begun as a partnership between candle maker William Procter and soap maker James Gamble in 1837, Procter & Gamble (P&G) grew from its roots to become one of the world’s largest and best-known consumer products companies. Building on Civil War candle and soap contracts, P&G grew rapidly by nationally marketing its floating Ivory Soap (1879). Innovative product research and creative marketing techniques resulted in the development of dozens of successful, universally recognized brands and expansion into beauty care, paper, and health care products. Its worldwide headquarters remains in Cincinnati.
Side B: Same
Sponsors: The Ohio Bicentennial Commission and The Ohio Historical Society
Address: 438 Sycamore Street, 
Location: P & G Plaza – On the NE side of the intersection of Sycamore St & E. 5th St
Latitude: 39.1020790
Longitude: -84.5079770