Slip ‘N Slide 50th birthday. The Wham-O® Slip ‘N Slide®, a mainstay of backyard summertime fun, is turning 50 this year. Invented by upholsterer Robert Carrier and released by Wham-O® in 1961, the Slip ‘N Slide® gained instant recognition for turning backyards into magical summer play lands and continues to be passed on from generation to generation.
