3 events were there in Equestrianat the Games of the XXXI Olympiad . It was held in 18 – 30 September 1988 . 28 from 18 nations competed in Equestrianat the Games of the XXXI Olympiad . The sport has the official site chicagomarathon.com . Olympic Indoor Hall (artistic and trampoline) were the venues of Equestrianat the Games of the XXXI Olympiad . Equestrianat the Games of the XXXI Olympiad was founded on 1884; 135 years ago (1884)
Equestrianat the Games of the XXXI Olympiad event has celebrated it's  Palladium jubilee on 1959