Forget quadruple-corks–in 1975, quadruple backflips were the hottest new thing. Rejected by Guinness Book of World Records for being to dangerous, Steve Corbett throws down the first quad backie anyway in this vintage gem. The stunt was performed on April 13th, 1975, and, even after 30 years, you can still sense the narrator’s mustache.

https://youtube.com/watch?v=mJJwC74PtDk