Date·Lore

On This Day · The 335th day of the year

December 1

December 1's recorded history is unusually compressed, gathered within recent centuries rather than reaching into antiquity. Its center of gravity is the 20th century, and politics and nation-building recur.

♐ZodiacSagittarius ◈BirthstoneTurquoise ❀Birth flowerHolly

Sagittarius is the sign for December 1 — read more on the Sagittarius page, or see December's birthstone & birth flower.

Compiled & reviewed by · Last reviewed September 6, 2026

What happened on December 1?

December 1 is the 335th day of the year. It marks 10 notable events in history, dated between 1822 and 1997. Famous people born on December 1 include Sebastián Piñera, Justin Chadwick and Brad Delson.

Released on December 1

Movies, games, albums & shows

2025

  • Game Marvel Cosmic Invasion

2023

  • Game SteamWorld Build

Release data from TMDB & IGDB.

Events

10 notable moments
  1. 1822

    Pedro I of Brazil

  2. 1862

    American Civil War

  3. 1934

    Sergei Kirov

  4. 1939

    World War II

  5. 1958

    Central African Republic

  6. 1963

    Nagaland

  7. 1971

    Croatian Spring

  8. 1973

    Papua New Guinea

  9. 1991

    Ukraine

  10. 1997

    Bihar

Famous birthday twins

Born on December 1

Sebastián Piñera

b. 1949

Justin Chadwick

b. 1968

Brad Delson

b. 1977

Zhu De

b. 1886

9th Dalai Lama

b. 1805

Katherine LaNasa

b. 1966

Chris Poland

b. 1957

George Maxwell Richards

b. 1931

Deaths

  • 2023Sandra Day O'Connor
  • 1973David Ben-Gurion
  • 1934Sergei Kirov
  • 1916Charles de Foucauld
  • 1825Alexander I of Russia
  • 1521Pope Leo X

Holidays & observances

  • —Battle of the Sinop Day (Russia)
  • —Christian feast day: Alexander Briant
  • —Christian feast day: Ansanus
  • —Christian feast day: Blessed Bruna Pellesi
  • —Christian feast day: Castritian
  • —Christian feast day: Charles de Foucauld
  • —Christian feast day: Edmund Campion
  • —Christian feast day: Eligius

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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