In August 1936, Summer Olympic games were held in Berlin, the capital of Nazi Germany. Several countries didn't want to participate and they had threatened to boycott, due to Adolf Hitler's regime.
In the end, they've decided to put their differences aside, and they stopped with the boycott. The 1936 Olympics will be remembered for the first Olympic torch relay and the performance of Jesse Owens.
In 1931, International Olympic Committee have decided to award the Olympics to Germany. They have decided that because they have thought that if they award the Olympics to Germany, it will help Germany to be popular again among other countries.
In the meantime Hitler became the supreme leader of Germany, and with his rise, everyone was aware that Nazi Germany was a police state, and they have showed an open hatred towards other races, especially Jews and Gypsies.
Jeremiah Mahoney, the president of The Amateur Athletic Union in the United States, still questioned Hitler's treatment of Jewish athletes. He knew and felt that Hitler hated them and went against Olympic values, so that's why he thought that a boycott was simply necessary.
Giving their support, several American athletes and athletic organizations chose to boycott the Olympic Trials and the Olympics because many of them were Jewish.
Great Britain, France and Czechoslovakia also wanted to boycott the Olympics, and they were some people who wanted to organize an alternative Olympics in Barcelona, but unfortunately the outbreak of the Spanish Civil War let to its cancellation.
We need to mention Jesse Owens, he was one of 18 African-American on the United States Olympic team. African Americans won 14 medals for the United States.