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On This Day · The 174th day of the year

June 23

A look at June 23 through the almanac — historic events, famous birthdays including Zinedine Zidane and Alan Turing, and the day's notable deaths and observances.

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Events

10 notable moments
  1. 2016

    United Kingdom

    The United Kingdom votes in a referendum to leave the European Union, by 52% to 48%.

    Country in northwestern Europe
  2. 2012

    Ashton Eaton

    Ashton Eaton breaks the decathlon world record at the United States Olympic Trials.

    American decathlete (born 1988)
  3. 2005

    Reddit

    American social news and discussion site Reddit is founded in Medford, Massachusetts by Steve Huffman and Alexis Ohanian.

    American social news and
  4. 1946

    1946 Vancouver Island earthquake

    The 1946 Vancouver Island earthquake strikes Vancouver Island, British Columbia, Canada.

    Canadian natural disaster
  5. 1942

    World War II

    World War II: Germany's latest fighter aircraft, a Focke-Wulf Fw 190, is captured intact when it mistakenly lands at RAF Pembrey in Wales.

    1939–1945 global conflict
  6. 1926

    College Board

    The College Board administers the first SAT exam.

    US educational nonprofit testing
  7. 1865

    American Civil War

    American Civil War: At Fort Towson in the Oklahoma Territory, Confederate Brigadier General Stand Watie surrenders the last significant Confederate army.

    1861–1865 conflict in the
  8. 1305

    Flanders

    A peace treaty between the Flemish and the French is signed at Athis-sur-Orge.

    Dutch-speaking region of Belgium
  9. 1280

    Reconquista

    The Spanish Reconquista: In the Battle of Moclín the Emirate of Granada ambush a superior pursuing force, killing most of them in a military disaster for the Kingdom of Castile.

    Medieval Christian military campaigns
  10. 1266

    War of Saint Sabas

    War of Saint Sabas: In the Battle of Trapani, the Venetians defeat a larger Genoese fleet, capturing all its ships.

    1256–1270 Venetian-Genoese war over
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Famous birthday twins

Born on June 23

Zinedine Zidane

b. 1972

French footballer and manager

Alan Turing

b. 1912

English mathematician and computer scientist

Clarence Thomas

b. 1948

American lawyer and jurist, Associate Justice of the Supreme Court of the United States

Martti Ahtisaari

b. 1937

Finnish captain and politician, 10th President of Finland, Nobel Prize laureate

Wilma Rudolph

b. 1940

American runner

Caesarion

b. -47

Egyptian king (died 30 BC)

Verena Holmes

b. 1889

English engineer

Patrick Vieira

b. 1976

French footballer and manager

Deaths

  • 2021John McAfee, British-American computer programmer and businessman, founded McAfee
  • 1989Werner Best, German police officer and jurist
  • 1959Boris Vian, French author, poet, and playwright
  • 1290Henry Probus, duke of Wrocław and high duke of Kraków (born c. 1258)
  • 679AD 679, English saint
  • 79AD 79, Roman emperor (born AD 9)

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)

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