It was held in 29 July – 11 August . 5 September 1971 is when Men's handballat the XXXI Olympiad was founded  . 16 (from 6 confederations) were the number of teams who competed in Men's handballat the XXXI Olympiad . Fort Copacabana, Pontal (Road) were the venues of Men's handballat the XXXI Olympiad . The official site of Men's handballat the XXXI Olympiad is chicagomarathon.com . 24 from 14 nations were the competitors in Men's handballat the XXXI Olympiad
The website of the sport is www.hardrock100.com