Date·Lore

On This Day · The 111th day of the year

April 21

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.

♉ZodiacTaurus ◈BirthstoneDiamond ❀Birth flowerDaisy

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

Compiled & reviewed by · Last reviewed September 6, 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.

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

  2. 1789

    George Washington's reception at Trenton

  3. 1918

    World War I

  4. 1945

    World War II

  5. 1958

    United Air Lines Flight 736

  6. 1960

    Brasília

  7. 1962

    Century 21 Exposition

  8. 1993

    La Paz

  9. 2010

    Kharkiv Pact

  10. 2021

    Indonesian Navy

Famous birthday twins

Born on April 21

Manuel Blanco Encalada

b. 1790

Max Weber

b. 1864

Elizabeth II

b. 1926

Tony Romo

b. 1980

Toby Stephens

b. 1969

Jean-Baptiste Biot

b. 1774

Freddie Dixon

b. 1892

Paul Karrer

b. 1889

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

The factual record above — event titles, dates, names, and observances — is drawn 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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