On This Day · The 361st day of the year

December 27

December 27 carries 10 recorded events spanning between 537 and 2009. The second Hagia Sophia in Constantinople is consecrated.

Compiled & reviewed by · Last reviewed July 13, 2026

What happened on December 27?

December 27 is the 361st day of the year. It marks 10 notable events in history, dated between 537 and 2009. Famous people born on December 27 include Louis Pasteur, Juan Luis Sanfuentes and Adil Rami.

The shape of the day

Few dates reach as far back as December 27: its recorded history runs unusually deep, stretching to 537. Its center of gravity is the 20th century, and politics and nation-building recur.

Capricorn is the sign for December 27 — read more on the Capricorn page, or see December's birthstone & birth flower.

Events

10 notable moments
  1. 537

    Hagia Sophia

    The second Hagia Sophia in Constantinople is consecrated.

  2. 1831

    Charles Darwin

    Charles Darwin embarks on his journey aboard HMS Beagle, during which he will begin to formulate his theory of evolution.

  3. 1932

    Radio City Music Hall

    Radio City Music Hall, "Showplace of the Nation", opens in New York City.

  4. 1939

    1939 Erzincan earthquake

    The 7.8 Mw Erzincan earthquake shakes eastern Turkey with a maximum Mercalli intensity of XI (Extreme). At least 32,700 people were killed.

  5. 1945

    International Monetary Fund

    The International Monetary Fund is created with the signing of an agreement by 29 nations.

  6. 1949

    Indonesian National Revolution

    Indonesian National Revolution: The Netherlands officially recognizes Indonesian independence. End of the Dutch East Indies.

  7. 1983

    Pope John Paul II

    Pope John Paul II visits Mehmet Ali Ağca in Rebibbia's prison and personally forgives him for the 1981 attack on him in St. Peter's Square.

  8. 2007

    Mombasa

    Riots erupt in Mombasa, Kenya, after Mwai Kibaki is declared the winner of the presidential election, triggering a political, economic, and humanitarian crisis.

  9. 2007

    Prime minister

    Former Pakistani prime minister Benazir Bhutto is assassinated in a shooting incident.

  10. 2009

    2009 Iranian presidential election protests

    Iranian election protests: On the Day of Ashura in Tehran, Iran, government security forces fire upon demonstrators.

Famous birthday twins

Born on December 27

Louis Pasteur

b. 1822

French chemist and microbiologist

Juan Luis Sanfuentes

b. 1858

Chilean lawyer and politician, 17th President of Chile

Adil Rami

b. 1985

French footballer

Marlene Dietrich

b. 1901

German-American actress and singer

Shelly-Ann Fraser-Pryce

b. 1986

Jamaican sprinter

Johannes Kepler

b. 1571

German mathematician, astronomer, and astrologer

Salman Khan

b. 1965

Indian film actor and producer

Jean Bartik

b. 1924

American computer scientist and engineer

Deaths

  • 2007Benazir Bhutto
  • 2002George Roy Hill
  • 1979Hafizullah Amin
  • 1923Gustave Eiffel
  • 1743Hyacinthe Rigaud
  • 683Emperor Gaozong of Tang

Holidays & observances

  • Christian feast day: Blessed Francesco Spoto
  • Christian feast day: Blessed Sára Salkaházi
  • Christian feast day: Fabiola
  • Christian feast day: John the Apostle
  • Christian feast day: Pope Maximus of Alexandria
  • Christian feast day: Nicarete
  • Christian feast day: Theodorus and Theophanes
  • Christian feast day: December 27 (Eastern Orthodox liturgics)

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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