386 from 138 nations competed in Gymnasticsat the Games of the XXX Olympiad . 5 September 1971 is when Gymnasticsat the Games of the XXX Olympiad was established  . 23 February was when it was held . The venue for Gymnasticsat the Games of the XXX Olympiad was Melbourne (since 1972),North Greenwich Arena (trampoline, artistic),Wembley Arena (rhythmic) . The no. of events in sport was 14
Gymnasticsat the Games of the XXX Olympiad was a single day event