Wikipedia:Selected anniversaries/April 30
April 30: Queen's Day in the Netherlands; Walpurgis Night in various European countries; Victory Day in Vietnam.
- 711 - Umayyad troops led by Tariq ibn-Ziyad landed at Gibraltar, beginning their conquest of Hispania.
- 1789 - George Washington (pictured) took the oath as the first President of the United States of America at Federal Hall, New York City.
- 1945 - Martin Bormann and Heinz Linge found Adolf Hitler dead in the Führerbunker.
- 1948 - The Organization of American States was established in Bogotá, Colombia.
- 1975 - North Vietnamese troops captured Saigon, ending the Vietnam War.