What major events happened in 1975?

Some of the global events that transpired in 1975 were the communist takeover of Cambodia by Pol Pot and the Khmer Rouge, the fall of Saigon that ended the Vietnam War and the first joint space mission of the American spacecraft, Apollo, and the Russian Soyuz. Moreover, one of the most notable milestones in computer history also occurred in 1975, with the establishment of Microsoft by Bill Gates and Paul Allen.

In scientific circles, John W. Cornforth and Vladimir Prelog won the Nobel Prize in Chemistry for their study on the molecular structures of cholesterol and antibiotics. The once popular home videotape systems, Betamax and VHS, were also invented in 1975.