Date·Lore

On This Day · The 294th day of the year

October 21

From 1097 to 2019, October 21 gathers 922 years of history. Most of the weight falls in the 20th century, where conflict is a recurring thread.

♎ZodiacLibra ◈BirthstoneOpal ❀Birth flowerMarigold

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

Compiled & reviewed by · Last reviewed September 6, 2026

What happened on October 21?

October 21 is the 294th day of the year. It marks 10 notable events in history, dated between 1097 and 2019. Famous people born on October 21 include Hongwu Emperor, Almen Abdi and Alfred Nobel.

Released on October 21

Movies, games, albums & shows

2025

  • Game Jurassic World Evolution 3
  • Game Ninja Gaiden 4
  • Game Vampire: The Masquerade - Bloodlines 2
  • Game Painkiller

2024

  • Game Tormenture

2022

  • Game Gotham Knights

2021

  • TV Invasion

Release data from TMDB & IGDB.

Events

10 notable moments
  1. 1097

    First Crusade

  2. 1854

    Florence Nightingale

  3. 1867

    Medicine Lodge Treaty

  4. 1910

    HMS Niobe (1897)

  5. 1941

    World War II

  6. 1959

    Solomon R. Guggenheim Museum

  7. 1989

    Honduras

  8. 1994

    Agreed Framework

  9. 2003

    Eris (dwarf planet)

  10. 2019

    Canada

Famous birthday twins

Born on October 21

Hongwu Emperor

b. 1328

Almen Abdi

b. 1986

Alfred Nobel

b. 1833

Michael McMillian

b. 1978

Benjamin Netanyahu

b. 1949

Festus Ezeli

b. 1989

Dizzy Gillespie

b. 1917

Nikita Mikhalkov

b. 1945

Deaths

  • 2014Gough Whitlam
  • 2012Yash Chopra
  • 1984François Truffaut
  • 1944Alois Kayser
  • 1931Arthur Schnitzler
  • 1505Paul Scriptoris

Holidays & observances

  • —Armed Forces Day (Honduras)
  • —Christian feast day: Céline of Laon
  • —Christian feast day: Blessed Charles of Austria (Roman Catholic Church)
  • —Christian feast day: Fintán of Taghmon
  • —Christian feast day: Hilarion
  • —Christian feast day: John of Bridlington
  • —Christian feast day: Laura of Saint Catherine of Siena
  • —Christian feast day: Malchus of Syria

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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