Summer Olympic Games when Tokyo again becomes host city. Historically, the Summer Olympics has been held predominantly in English-speaking countries and European nations. Tokyo will be the first city outside these regions to have hosted the Summer Olympics twice; it will also be the largest city ever to have hosted the Games, having grown considerably since 1964. The 2016 Games in Rio de Janeiro, Brazil, were the first Summer Olympics to be held in South America and the first that were held during the local winter season. The only two countries in the Southern Hemisphere to have hosted the Summer Olympics have been
Summer Olympic Games by six criteria: television viewing figures (40%), internet popularity (20%), public surveys (15%), ticket requests (10%), press coverage (10%), and number of national federations (5%). The category of a sport determines the share of Olympic revenue received by that sport's International Federation. Sports that were new to the 2016 Olympics (rugby and golf) have been placed in Category E. The current categories are: The table below uses official data provided by the IOC. "Note: Although the Games of 1916, 1940, and 1944 had been cancelled, the Roman numerals for those Games were still used because the Summer Games' official titles