1970⚡ Event
Hutt River Province Declared Independent
In response to a dispute over wheat production quotas, Leonard Casley declared his farm in Western Australia to be an independent country. He named it the Hutt River Province.
politicseconomics
What Happened on April 21?
Discover 15 historical moments on April 21 — 5 events, 5 birthdays, and 5 notable deaths spanning centuries of human history.
politicswarlawsportsdisasterentertainmentmusiceconomics
Hero image inspired by: Kharkiv Pact
Historical Events on April 21(5)
1975⚡ Event
South Vietnamese President Resigns
South Vietnamese president Nguyễn Văn Thiệu resigned on hearing of the fall of Xuân Lộc. This marked the last battle of the Vietnam War.
politicswar
2010⚡ Event
Kharkiv Pact Signed
Ukraine and Russia signed the Kharkiv Pact. This agreement extended the Russian lease on naval facilities in Crimea.
politicswar
2014⚡ Event
Flint, Michigan Changes Water Source
The city of Flint, Michigan, U.S., changed its water source to the Flint River. This decision exposed residents to lead poisoning.
disasterlaw
2021⚡ Event
Indonesian Submarine Nanggala Sinks
The Indonesian Navy submarine Nanggala sank, resulting in the deaths of all 53 people on board.
disasterwar
Famous Birthdays on April 21(5)
2007🎂 Birth
Princess Isabella of Denmark
Princess Isabella of Denmark, daughter of King Frederik X and Queen Mary of Denmark, was born.
politics
Notable Deaths on April 21(5)
2019🕊️ Death
Polly Higgins
Polly Higgins, a Scottish barrister, author, and environmental lobbyist born in 1968, has died.
lawliteraturepolitics
2024🕊️ Death
Terry A. Anderson
Terry A. Anderson, an American journalist born in 1947, has died.
politicslaw
April 21 in History
April 21 is home to 15 recorded historical entries in our collection, including 5 notable events, 5 famous birthdays, and 5 deaths. This date has witnessed momentous occasions spanning from 1970 to the present day.
Major Events on April 21
Among the most notable events on April 21: Hutt River Province Declared Independent (1970), South Vietnamese President Resigns (1975), Kharkiv Pact Signed (2010). View all events →
Famous Birthdays on April 21
Notable figures born on April 21 include Jarrett Allen, Choi Hyun-suk, Xavi Simons. View all birthdays →
Notable Deaths on April 21
Remembered figures who died on April 21 include Ugo Ehiogu, Nabi Tajima, Polly Higgins. View all →
Browse what happened on April 20 or April 22, explore the full month of April, or discover a random historical fact.
Frequently Asked Questions
- What happened on April 21?
- April 21 is home to 15 recorded historical entries, including 5 notable events, 5 famous birthdays, and 5 notable deaths.
- What is the most notable event on April 21?
- One of the most notable events on April 21 is: Hutt River Province Declared Independent.
- Who was born on April 21?
- Famous figures born on April 21 include Jarrett Allen, Choi Hyun-suk, Xavi Simons.
- How many historical events happened on April 21?
- Our collection records 5 historical events on April 21, spanning centuries of world history.
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