1888–1891,(1888: 5 canonical) was when it was held . The no. of events in sport was 18 . 12 (from 4 confederations) teams participated in Equestrianat the Games of the XXXI Olympiad . 60 from 34 nations competed in Equestrianat the Games of the XXXI Olympiad . Equestrianat the Games of the XXXI Olympiad was founded on 1891; 128 years ago (1891) . The sport has the official site chicagomarathon.com . The venue for Equestrianat the Games of the XXXI Olympiad was Riocentro – Pavilion 6
12 (from 4 confederations) teams played 18 games