The 1940 Summer Olympics, officially known as the Games of the XII Olympiad, were originally scheduled to be held from September 21 to October 6, 1940, in Tokyo, Japan.

Since the opening of the first modern Olympic Games in 1896, the international sports competition has only been canceled three times: once during World War I (1916) and twice during World War II (1940, 1944). Until the 2020 COVID-19 outbreak, which postponed the Summer Olympic games for a year, the Olympics weathered politically charged boycotts and two separate terrorist attacks without being canceled or postponed during peacetime.

The 1940 summer and winter Olympics were both scheduled to be held in Japan, the first non-Western country to host the games, but Japan forfeited its rights in 1937 when it went to war with China. The 1940 games were initially rebooked for Helsinki, Finland in the summer and the German town of Garmisch-Partenkirchen in the winter, but finally canceled in 1939 with Germany’s invasion of Poland.

Tokyo eventually held the 1964 Summer Olympics and was scheduled to hold the 2020 Summer Olympics, although the event was postponed to 2021 due to the COVID-19 pandemic.

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