1789 – George Washington took the oath as the first President of the United States of America at Federal Hall in New York City.
1945 – World War II: As Allied forces were closing in on Berlin, Adolf Hitler and Eva Braun committed suicide in the Führerbunker after being married for one day.
1948 – 21 countries signed a charter in Bogotá, Colombia establishing the Organization of American States.
1975 – North Vietnamese troops captured Saigon, ending the Vietnam War with the unconditional surrender of South Vietnam.
1993 – CERN announced that the World Wide Web would be free to everyone.
I think the last is the most important!
