The Chemical Weapons Convention becomes effective. The arms control treaty prohibits the production, storage, and use of chemical weapons. It has so far been ratified by some 190 countries.

Deadly riots erupt in Los Angeles. 53 people died in the riots, which started after the acquittal of the 4 Los Angeles police officers accused of the brutal beating of Rodney King.

Hubert van Es takes the famous picture of a helicopter airlift from a Saigon rooftop. The image shows South Vietnamese civilians employed by the U.S. trying to escape Saigon on the day before the city's fall. It came to symbolize the American defeat in Vietnam.

The musical Hair goes to Broadway. As a portrait of the 1960s hippie counterculture and sexual revolution, it was highly controversial at the time. Some of the musical's songs became anthems of the peace movement during the Vietnam War.

A day before committing suicide, Adolf Hitler and Eva Braun marry. On the same day, U.S. troops liberated the Dachau concentration camp near Munich.