Date·Lore

On This Day · The 343rd day of the year

December 9

December 9's recorded history is unusually compressed, gathered within recent centuries rather than reaching into antiquity. Its center of gravity is the 20th century, and conflict is a recurring thread.

♐ZodiacSagittarius ◈BirthstoneTurquoise ❀Birth flowerHolly

Sagittarius is the sign for December 9 — 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 9?

December 9 is the 343rd day of the year. It marks 10 notable events in history, dated between 1775 and 2016. Famous people born on December 9 include Carlo Azeglio Ciampi, Peter Kropotkin and Stefen Fangmeier.

Released on December 9

Movies, games, albums & shows

2025

  • Game Unbeatable
  • Game Death Howl

2024

  • Game Indiana Jones and the Great Circle
  • Game Among Ashes
  • Game Stars in the Trash

2022

  • Game Choo-Choo Charles

2021

  • Game GTFO
  • Game Wytchwood

Release data from TMDB & IGDB.

Events

10 notable moments
  1. 1775

    American Revolutionary War

  2. 1856

    Iran

  3. 1911

    Cross Mountain Mine disaster

  4. 1917

    World War I

  5. 1940

    World War II

  6. 1965

    Kecksburg UFO incident

  7. 1968

    Douglas Engelbart

  8. 1969

    William P. Rogers

  9. 1992

    Somalia

  10. 2016

    Park Geun-hye

Famous birthday twins

Born on December 9

Carlo Azeglio Ciampi

b. 1920

Peter Kropotkin

b. 1842

Stefen Fangmeier

b. 1960

Caroline Lucas

b. 1960

Chenghua Emperor

b. 1447

Grace Hopper

b. 1906

Tabitha Babbitt

b. 1779

Kirsten Gillibrand

b. 1966

Deaths

  • 1996Alain Poher
  • 1932Karl Blossfeldt
  • 1830Heinrich Christian Friedrich Schumacher
  • 1544Teofilo Folengo
  • 1437Sigismund, Holy Roman Emperor
  • 1117Gertrude of Brunswick

Holidays & observances

  • —Anna's Day, marks the day to start the preparation process of the lutefisk to be consumed on Christmas Eve, as well as a Swedish name day, celebrating all people named Anna. (Sweden and Finland)
  • —Armed Forces Day (Peru)
  • —Christian feast day: Feast of the Conception of the Most Holy Theotokos by St. Anne (Eastern Orthodox Church)
  • —Christian feast day: Hannah (biblical figure) (Eastern Orthodox Church)
  • —Christian feast day: Juan Diego
  • —Christian feast day: Leocadia
  • —Christian feast day: Nectarius of Auvergne
  • —Christian feast day: Peter Fourier

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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