Date·Lore

On This Day · The 171st day of the year

June 20

June 20 carries 10 recorded events spanning between 1782 and 2003. The U.S. Congress adopts the Great Seal of the United States.

♊ZodiacGemini ◈BirthstonePearl ❀Birth flowerRose

Compiled & reviewed by · Last reviewed July 13, 2026

What happened on June 20?

June 20 is the 171st day of the year. It marks 10 notable events in history, dated between 1782 and 2003. Famous people born on June 20 include Jean Moulin, Jean-Marie Le Pen and Xanana Gusmão.

The shape of the day

This year marks the 100th anniversary of 28th International Eucharistic Congress — June 20 carries the weight of round numbers. Its center of gravity is the 20th century, and conflict is a recurring thread.

Gemini is the sign for June 20 — read more on the Gemini page, or see June's birthstone & birth flower.

Released on June 20

Movies, games, albums & shows

2025

  • Movie KPop Demon Hunters

2024

  • Game Zenless Zone Zero
  • Game Aska
  • Movie Despicable Me 4

2023

  • Game Vinemon: Sauce Edition
  • Game Aliens: Dark Descent

2022

  • Game Raft
  • Game Inside the Backrooms
  • Game Hands of Necromancy

Release data from TMDB & IGDB.

Events

10 notable moments
  1. 1782

    Congress of the Confederation

    The U.S. Congress adopts the Great Seal of the United States.

  2. 1900

    Boxer Rebellion

    Boxer Rebellion: The Imperial Chinese Army begins a 55-day siege of the Legation Quarter in Beijing, China.

  3. 1921

    Buckingham and Carnatic Mills

    Workers of Buckingham and Carnatic Mills in the city of Chennai, India, begin a four-month strike.

  4. 1926

    28th International Eucharistic Congress

    The 28th International Eucharistic Congress begins in Chicago, with over 250,000 spectators attending the opening procession.

  5. 1943

    World War II

    World War II: The Royal Air Force launches Operation Bellicose, the first shuttle bombing raid of the war. Avro Lancaster bombers damage the V-2 rocket production facilities at the Zeppelin Works while en route to an air base in Algeria.

  6. 1956

    Venezuela

    A Venezuelan Super-Constellation crashes in the Atlantic Ocean off Asbury Park, New Jersey, killing 74 people.

  7. 1960

    Mali Federation

    The Mali Federation gains independence from France (it later splits into Mali and Senegal).

  8. 1982

    International Conference on the Holocaust and Genocide

    The International Conference on the Holocaust and Genocide opens in Tel Aviv, despite attempts by the Turkish government to cancel it, as it included presentations on the Armenian genocide.

  9. 1994

    Imam Reza shrine bombing

    The 1994 Imam Reza shrine bomb explosion in Iran leaves at least 25 dead and 70 to 300 injured.

  10. 2003

    Wikimedia Foundation

    The Wikimedia Foundation is founded in St. Petersburg, Florida.

Famous birthday twins

Born on June 20

Jean Moulin

b. 1899

French soldier and engineer

Jean-Marie Le Pen

b. 1928

French intelligence officer and politician

Xanana Gusmão

b. 1946

Timorese soldier and politician, 1st President of East Timor

Neil Trudinger

b. 1942

Australian mathematician and theorist

Lionel Richie

b. 1949

American singer, songwriter, pianist, producer, and actor

Nicole Kidman

b. 1967

American-Australian actress

Frank Lampard

b. 1978

English footballer

Jacques Offenbach

b. 1819

German-French cellist and composer

Deaths

  • 1978Mark Robson (film director)
  • 1966Georges Lemaître
  • 1945Bruno Frank
  • 1888Johannes Zukertort
  • 1800Abraham Gotthelf Kästner
  • 840Louis the Pious

Holidays & observances

  • —Christian feast day: Adalbert of Magdeburg
  • —Christian feast day: Florentina
  • —Christian feast day: John of Matera
  • —Christian feast day: Blessed Margareta Ebner
  • —Christian feast day: Methodius of Olympus
  • —Christian feast day: Pope Silverius
  • —Christian feast day: June 20 (Eastern Orthodox liturgics)
  • —Day of the National Flag (Argentina)

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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