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 to the country's decision to boycott the Games, the document detailed the existing steroids operations of the program, along with suggestions for further enhancements. The communication, directed to the Soviet Union's head of track and field, was prepared by Dr. Sergei Portugalov of the Institute for Physical Culture. Portugalov was also one of the main figures involved in the implementation of the Russian doping program prior to the 2016 Summer Olympics. The 1988 games, in Seoul, were very well planned but the games were tainted when many of the athletes, most notably men's 100 metres winner Ben Johnson, failed mandatory