Gymnastics was not simply 'created'. It evolved over time mostly from contortion But there is a reason why it became famous. It started in circuses, as freak shows then developed into competitions and the moves developed into named, serious moves.
See answer for when were gymnastics created?
UCLA Bruins gymnastics was created in 1974.
Welsh Gymnastics was created on 2004-04-01.
Goofy Gymnastics was created on 1949-09-23.
Michigan Wolverines women's gymnastics was created in 1976.
Michigan Wolverines men's gymnastics was created in 1931.
LSU Lady Tigers gymnastics was created in 1975.
Alabama Crimson Tide gymnastics was created in 1975.
East Atlantic Gymnastics League was created in 1995.
Florida Gators women's gymnastics was created in 1973.
It was originated in Greece
No it was created by Per Henrik in 1814 :)