29 July – 11 August 1984 was when it was held . USTA Billie Jean King National Tennis Center,Arena Olímpica do Rio,Galatsi Olympic Hall (rhythmic) were the venues of Gymnasticsat the Games of the XXXI Olympiad . The official site of Gymnasticsat the Games of the XXXI Olympiad is chicagomarathon.com . 6 events were there in Gymnasticsat the Games of the XXXI Olympiad . Gymnasticsat the Games of the XXXI Olympiad was established on 1963 . 136 from 29 nations were the competitors in Gymnasticsat the Games of the XXXI Olympiad
136 people competed in the Gymnasticsat the Games of the XXXI Olympiad