Who invented ivory soap?

Chemist, James N. Gamble, created the floating soap formula. In a document, found by Proctor and Gamble archivist, Ed Rider, James Gamble noted "I made floating soap today. I think we'll make all of our stock that way."

Many people believe that the invention of Ivory soap was an accident when a Proctor and Gamble employee went out to lunch and left the mixer on, but this is not true.