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
Olympic Games ceremony place. Another IOC rule states that the cauldron should be witnessed outside by the entire residents of the entire host city. This was made evident during the opening ceremony for the 2010 Games in Vancouver. The venue chosen as the Olympic Stadium was BC Place, which at the time was an air-supported domed stadium. Since there was no way the cauldron could be displayed outside and also be seen at the stadium, two cauldrons were used. For the first torch lighting inside the stadium the organizers chose three-time speed skating medalist Catriona Le May Doan, Canadian Senator Nancy Greene, who