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
Winter Olympic Games not enough snow to hold all the events until mid-January. Sonja Henie defended her Olympic title, and Eddie Eagan of the United States, who had been an Olympic champion in boxing in 1920, won the gold medal in the men's bobsleigh event to become the first, and so far only, Olympian to have won gold medals in both the Summer and Winter Olympics. The German towns of Garmisch and Partenkirchen joined to organise the 1936 edition of the Winter Games, held on 6–16 February. This was the last time the Summer and Winter Olympics were held in the same country