During the 1950's the Paint By Number craze infiltrated and swept across North America. Today Paint Parties are now part of the cultural milieu for many North Americans. Way back in the Renaissance period, Leonardo da Vinci, born 500 years ago, on May 2nd, 1519, seemed to have sparked an interesting concept that was picked up and introduced into popular culture during the 1950's. Trace elements of this cultural phenomenon continue today.