Date·Lore

On This Day · The 111th day of the year

April 21

April 21 carries 10 recorded events spanning between 1615 and 2021. The Wignacourt Aqueduct is inaugurated in Malta.

♉ZodiacTaurus ◈BirthstoneDiamond ❀Birth flowerDaisy

Compiled & reviewed by · Last reviewed July 13, 2026

What happened on April 21?

April 21 is the 111th day of the year. It marks 10 notable events in history, dated between 1615 and 2021. Famous people born on April 21 include Manuel Blanco Encalada, Max Weber and Elizabeth II.

The shape of the day

From 1615 to 2021, April 21 gathers 406 years of history. Most of the weight falls in the 20th century, where conflict is a recurring thread.

Taurus is the sign for April 21 — read more on the Taurus page, or see April's birthstone & birth flower.

Released on April 21

Movies, games, albums & shows

2026

  • Game Vampire Crawlers: The Turbo Wildcard from Vampire Survivors

2025

  • Game True Fear: Forsaken Souls Part 3

2023

  • Game Dead Island 2

2022

  • Game Teardown

Release data from TMDB & IGDB.

Events

10 notable moments
  1. 1615

    Wignacourt Aqueduct

    The Wignacourt Aqueduct is inaugurated in Malta.

  2. 1789

    George Washington's reception at Trenton

    George Washington's reception at Trenton is hosted by the Ladies of Trenton as he journeys to New York City for his first inauguration.

  3. 1918

    World War I

    World War I: German fighter ace Manfred von Richthofen, better known as "The Red Baron", is shot down and killed over Vaux-sur-Somme in France.

  4. 1945

    World War II

    World War II: Soviet forces south of Berlin at Zossen attack the German High Command headquarters.

  5. 1958

    United Air Lines Flight 736

    United Air Lines Flight 736 collides with a United States Air Force fighter jet near Arden, Nevada in what is now Enterprise, Nevada.

  6. 1960

    Brasília

    Brasília, Brazil's capital, is officially inaugurated. At 09:30, the Three Powers of the Republic are simultaneously transferred from the old capital, Rio de Janeiro.

  7. 1962

    Century 21 Exposition

    The Seattle World's Fair (Century 21 Exposition) opens. It is the first World's Fair in the United States since World War II.

  8. 1993

    La Paz

    The Supreme Court in La Paz, Bolivia, sentences former dictator Luis García Meza to 30 years in jail without parole for murder, theft, fraud and violating the constitution.

  9. 2010

    Kharkiv Pact

    The controversial Kharkiv Pact (Russian Ukrainian Naval Base for Gas Treaty) is signed in Kharkiv, Ukraine, by Ukrainian president Viktor Yanukovych and Russian president Dmitry Medvedev; it was unilaterally terminated by Russia on March 31, 2014.

  10. 2021

    Indonesian Navy

    Indonesian Navy submarine KRI Nanggala (402) sinks in the Bali Sea during a military drill, killing all 53 on board.

Famous birthday twins

Born on April 21

Manuel Blanco Encalada

b. 1790

Spanish-Chilean admiral and politician, 1st President of Chile

Max Weber

b. 1864

German economist and sociologist

Elizabeth II

b. 1926

Queen of the United Kingdom and her other realms

Tony Romo

b. 1980

American football player and announcer

Toby Stephens

b. 1969

English actor

Jean-Baptiste Biot

b. 1774

French physicist, astronomer, and mathematician

Freddie Dixon

b. 1892

English motorcycle racer and racing driver

Paul Karrer

b. 1889

Russian-Swiss chemist and academic, Nobel Prize laureate

Deaths

  • 2016Prince (musician)
  • 1918Manfred von Richthofen
  • 1910Mark Twain
  • 1699Jean Racine
  • 1142Peter Abelard
  • 234Emperor Xian of Han

Holidays & observances

  • —Christian feast day: Abdecalas
  • —Christian feast day: Anastasius Sinaita
  • —Christian feast day: Anselm of Canterbury
  • —Christian feast day: Conrad of Parzham
  • —Christian feast day: Holy Infant of Good Health
  • —Christian feast day: Máel Ruba
  • —Christian feast day: Shemon Bar Sabbae
  • —Christian feast day: Wolbodo

Historical facts, event summaries, and biographical lines above are adapted from Wikipedia under the Creative Commons Attribution-ShareAlike (CC BY-SA) license. DateLore adds curation, structure, and original editorial commentary. DateLore is not affiliated with the Wikimedia Foundation.

About the author

Roman Tailor compiles and reviews every date on DateLore. He's the writer and editor behind the site's editorial essays and the day-by-day almanac. Corrections and questions are welcome — read more about DateLore or get in touch.

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