onthisday.me

On this day

December 17 Thursday, December 17, 2026

A curious almanac of what happened on December 17 across the years — history, birthdays, the songs that ruled the charts, the films that packed cinemas, and the science that nudged the world forward.

🎂

Were you born on December 17?

Find out what the world looked like the day you arrived.

12
Events
7
Birthdays
6
Holidays
December 17, 1354: Margaret II, Countess of Hainaut and Holy Roman Empress and her son William I, Duke of Bavaria, sign a peace treaty ending the Hook and Cod wars.
1354
European history 672 years ago

Margaret II, Countess of Hainaut and Holy Roman Empress and her son William I, Duke of Bavaria, sign a peace treaty ending the Hook and Cod wars.

Margaret II, Countess of Hainaut, and her son William I, Duke of Bavaria, signed a peace treaty ending the Hook and Cod Wars.

History

What happened on December 17

12 verified entries Full timeline
  1. -497

    The first Saturnalia festival is celebrated in ancient Rome.

    Ancient Romans celebrate the first Saturnalia festival, a week-long winter solstice holiday honoring Saturn.

    World history
  2. 546

    Siege of Rome: The Ostrogoths under king Totila plunder the city, by bribing the Eastern Roman garrison.

    The Ostrogoth king Totila plunders Rome by bribing the Eastern Roman garrison, seizing control of the city.

    War
  3. 920

    Romanos I Lekapenos is crowned co-emperor of the underage Constantine VII.

    Romanos I Lekapenos is crowned co-emperor of the Byzantine Empire alongside the underage Constantine VII, consolidating his power as regent.

    European history
  4. 942

    Assassination of William I of Normandy.

    William I of Normandy is killed in the Battle of Germiny, ending his reign after a decade.

    UK history
  5. 1297

    King Kyawswa of Pagan is overthrown by the three Myinsaing brothers, marking the de facto end of the Pagan Kingdom.

    The three Myinsaing brothers overthrow King Kyawswa, ending the Pagan Kingdom's rule.

    World history
  6. 1354

    Margaret II, Countess of Hainaut and Holy Roman Empress and her son William I, Duke of Bavaria, sign a peace treaty ending the Hook and Cod wars.

    Margaret II, Countess of Hainaut, and her son William I, Duke of Bavaria, signed a peace treaty ending the Hook and Cod Wars.

    European history
  7. 1398

    Sultan Nasir-u Din Mehmud's armies in Delhi are defeated by Timur.

    Timur defeats Sultan Nasir-u Din Mehmud's armies in Delhi, marking the end of the Sultanate's control over the region.

    War
  8. 1583

    Cologne War: Forces under Ernest of Bavaria defeat troops under Gebhard Truchsess von Waldburg at the Siege of Godesberg.

    Ernest of Bavaria's forces defeat Gebhard Truchsess von Waldburg's troops at the Siege of Godesberg.

    War
  9. 1586

    Go-Yōzei becomes Emperor of Japan.

    Go-Yōzei ascends to the Japanese throne at age fifteen, beginning a reign that would last until 1611 during the late Azuchi-Momoyama and early Edo periods.

    World history
  10. 1665

    The first account of a blood transfusion is published, in the form of a letter from physician Richard Lower to chemist Robert Boyle, in Philosophical Transactions of the Royal Society

    Richard Lower publishes the first account of a blood transfusion in a letter to Robert Boyle in Philosophical Transactions of the Royal Society.

    Science
  11. 1777

    American Revolution: France formally recognizes the United States.

    France formally recognizes the United States as an independent nation.

    US history
  12. 1807

    Napoleonic Wars: France issues the Milan Decree, which confirms the Continental System.

    France issues the Milan Decree, confirming the Continental System and intensifying economic warfare against Britain.

    War

Born today

Famous birthdays on December 17

Music

The number one songs on December 17

Across the years Full chart history
Stand and Deliver album cover

🇬🇧 #1 on December 17, 1981

"Stand and Deliver"

by Adam and the Ants

The dandy highwayman spent five weeks at the top — a brash, glam-pop coronation.

#1 for 5 weeks

Also #1 on this day

  • 1965
    "Ticket To Ride"
    — The Beatles
  • 1972
    "Metal Guru"
    — T. Rex
  • 2003
    "Make Luv"
    — Room 5 ft. Oliver Cheatham

Film & TV

At the movies

Box office #1 and premieres All releases
The Empire Strikes Back poster

Box-office #1

The Empire Strikes Back

1980 · dir. Irvin Kershner

Wide US release on May 23, 1980. Goes on to become the highest-grossing film of the year.

Sci-fiStar Wars $538M worldwide
🏆 Sport

December 17, 1933

The first NFL Championship Game is played at Wrigley Field in Chicago between the New York Giants and Chicago Bears. The Bears win 23-21.

The Chicago Bears defeat the New York Giants 23-21 in the first NFL Championship Game at Wrigley Field.

Read the story
🔬 Science

December 17, 1938

Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.

Otto Hahn discovers nuclear fission in uranium, laying the foundation for nuclear energy technology.

Read the story

Today is also

Holidays & observances

6 celebrated today

Accession Day (Bahrain)

International

The culture of Bahrain is part of the historical region of Eastern Arabia

International Day to End Violence Against Sex Workers

International

The International Day to End Violence Against Sex Workers is observed annually on 17 December by sex workers, their clientele, friends, families and allies

Kurdish Flag Day (Global Kurdish population)

International

The flag of Kurdistan also called Ala Rengin is the flag of Kurds and was created by the Society for the Rise of Kurdistan in 1920

National Day (Bhutan)

International

Public holidays in Bhutan consist of both national holidays and local festivals or tshechus

Pan American Aviation Day (United States)

International

Pan American Aviation Day is a United States Federal Observance Day observed December 17

Wright Brothers Day, a United States federal observance by Presidential proclamation

International

Wright Brothers Day is a United States national observation

You can't be common because the common man goes nowhere; you have to be uncommon.

Ken Hitchcock · born December 17, 1951