April 30
1789
On the balcony of Federal Hall on Wall Street in New York City, George Washington takes the oath of office to become the first elected President of the United States.
1945
World War II: Führerbunker: Adolf Hitler and Eva Braun commit suicide after being married for one day. Soviet soldiers raise the Victory Banner over the Reichstag building.
1975
Fall of Saigon (or Liberation of Saigon from the Communist perspective): Communist forces gain control of Saigon. The Vietnam War formally ends with the unconditional surrender of South Vietnamese president Duong Van Minh.