What year did the first Olympic boycott occur during the Summer Games in Melbourne?

The first Olympic boycott during the Summer Games occurred in 1956 in Melbourne. This boycott was primarily driven by political tensions surrounding the Suez Crisis, which led several countries, including Egypt, Iraq, and Lebanon, to withdraw their participation. Additionally, the issues surrounding Hungary's uprising against Soviet control also prompted a boycott from countries like the Netherlands, Spain, and Switzerland, in protest against the Soviet Union's presence at the Games. This event marked a significant moment in Olympic history, highlighting how global political issues can intersect with sports and affect international participation in the Games. The 1952, 1960, and 1964 Olympics did not experience a boycott of this nature, making 1956 a notable year in Olympic history.