Who preformed the Tsukahara first?

The Tsukahara, a gymnastics move named after Japanese gymnast Mitsuo Tsukahara, was first performed in competition by him during the 1968 Summer Olympics in Mexico City. Tsukahara executed this move on the vault, which involves a round-off entry and a somersault off the apparatus. His successful execution of this innovative move contributed to its lasting significance in the sport.