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 alternating even-numbered years. Lillehammer is the northernmost city to ever host the Winter Games and it was the second time the Games were held in Norway, after the 1952 Winter Olympics in Oslo. After the dissolution of Czechoslovakia in 1993, the Czech Republic and Slovakia made their Olympic debuts. The women's figure skating competition drew media attention when American skater Nancy Kerrigan was injured on 6 January 1994, in an assault planned by the ex-husband of opponent Tonya Harding. Both skaters competed in the Games, but the gold medal was controversially won by Oksana Baiul who became Ukraine's first Olympic