Date·Lore

On This Day · The 174th day of the year

June 23

100 years on from College Board, June 23 is a date with an anniversary worth pausing on. Most of the weight falls in the 21st century, where conflict is a recurring thread.

♋ZodiacCancer ◈BirthstonePearl ❀Birth flowerRose

Cancer is the sign for June 23 — read more on the Cancer page, or see June's birthstone & birth flower.

Compiled & reviewed by · Last reviewed September 6, 2026

What happened on June 23?

June 23 is the 174th day of the year. It marks 10 notable events in history, dated between 1266 and 2016. Famous people born on June 23 include Zinedine Zidane, Alan Turing and Clarence Thomas.

Released on June 23

Movies, games, albums & shows

2025

  • Movie Jurassic World Rebirth

2022

  • TV The Bear

2021

  • Game Out of Line

Release data from TMDB & IGDB.

Events

10 notable moments
  1. 1266

    War of Saint Sabas

  2. 1280

    Reconquista

  3. 1305

    Flanders

  4. 1865

    American Civil War

  5. 1926

    College Board

  6. 1942

    World War II

  7. 1946

    1946 Vancouver Island earthquake

  8. 2005

    Reddit

  9. 2012

    Ashton Eaton

  10. 2016

    United Kingdom

Famous birthday twins

Born on June 23

Zinedine Zidane

b. 1972

Alan Turing

b. 1912

Clarence Thomas

b. 1948

Martti Ahtisaari

b. 1937

Wilma Rudolph

b. 1940

Caesarion

b. -47

Verena Holmes

b. 1889

Patrick Vieira

b. 1976

Deaths

  • 2021John McAfee
  • 1989Werner Best
  • 1959Boris Vian
  • 1290Henry Probus

Holidays & observances

  • —Christian feast day: Æthelthryth
  • —Christian feast day: Marie of Oignies
  • —Christian feast day: Joseph Cafasso
  • —Christian feast day: June 23 (Eastern Orthodox liturgics)
  • —Father's Day (Nicaragua, Poland)
  • —Grand Duke's Official Birthday (Luxembourg)
  • —International Women in Engineering Day
  • —International Widows Day (international)

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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