Venues of the 1976 Summer Olympics games in early 1976 though all three venues were completed as best as possible prior to the 1976 Games. 27 swimming world records were set as a result. The oldest stadium, Molson Stadium at McGill University, would be converted into artificial turf for the field hockey tournaments while the sailing program in Kingston, Ontario would be held in freshwater, both for the first time in Summer Olympic history. Indoor track cycling took place at the Olympics for the first time at the velodrome. Once the Olympics finished, the Montreal Expos and Montreal Alouettes moved into Olympic Stadium, staying until 2004
Summer Olympic Games demand for tickets to all levels of each event, there was controversy when seats set aside for sponsors and National Delegations went unused in the early days. A system of reallocation was put in place so the empty seats were filled throughout the Games. Rio de Janeiro, Brazil hosted the 2016 Summer Olympics, becoming the third city in the Southern Hemisphere to host the Olympic Games after Melbourne, Australia, in 1956 and Sydney, Australia, in 2000, and the first South American city to host the Olympics. The preparation for these Games was overshadowed by controversies, including the instability of Brazil's