What are the important events that happened on December 1? Here are historical events, facts, and some myths about this day.
December 1: Facts & Myths About This Day
December 1 is the 335th day of the year 2025 in the Gregorian calendar. There are 30 days remaining until the end of this year. The day of the week is Monday.
Under the Julian calendar, this day is November 18, 2025 – a Monday. Both day of the week are the same but did you notice the difference with the Gregorian calendar?
When this day started, 29,409,120 minutes has elapsed since midnight of January 1, 1970 – the Unix epoch.
Strange as it may, if we name this day after a polygon then it will be called ‘trihectatriacontapentagon’ day.
Celebrate birthdays like never before! 🎉 Discover original songs, cool trivia, and fun facts. Make your special day unforgettable! Subscribe now for birthday magic! 🎂✨ (Sponsored)
Sagittarius is the zodiac sign of a person born on this day. Turquoise is the modern birthstone for this month. Onyx is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 78 days remaining before the start of the next Chinese New Year.
The ancient Maya civilization believes that the end of the world will happen on December 21, 2012. There are now 4,728 days since this fabled cataclysmic event.
Do people and celebrities interest you? Discover all the December 1 famous birthdays who share your special day. Learn some fun facts about your birthday!
(Sponsored by MyBirthday.Ninja)
December 1 Historical Events
1640 –
End of the Iberian Union: Portugal acclaims as King João IV of Portugal, ending 60 years of personal union of the crowns of Portugal and Spain and the end of the rule of the House of Habsburg (also called the Philippine Dynasty).
1862 –
In his State of the Union Address President Abraham Lincoln reaffirms the necessity of ending slavery as ordered ten weeks earlier in the Emancipation Proclamation.
1913 –
Crete, having obtained self rule from Turkey after the First Balkan War, is annexed by Greece.
1918 –
The Kingdom of Serbs, Croats and Slovenes (later known as the Kingdom of Yugoslavia) is proclaimed.
1925 –
World War I aftermath: The final Locarno Treaty is signed in London, establishing post-war territorial settlements.
1941 –
World War II: Fiorello La Guardia, Mayor of New York City and Director of the Office of Civilian Defense, signs Administrative Order 9, creating the Civil Air Patrol.
1955 –
American Civil Rights Movement: In Montgomery, Alabama, seamstress Rosa Parks refuses to give up her bus seat to a white man and is arrested for violating the city’s racial segregation laws, an incident which leads to the Montgomery Bus Boycott.
1964 –
Malawi, Malta and Zambia join the United Nations.
1971 –
Cambodian Civil War: Khmer Rouge rebels intensify assaults on Cambodian government positions, forcing their retreat from Kompong Thmar and nearby Ba Ray.
1990 –
Channel Tunnel sections started from the United Kingdom and France meet 40 metres beneath the seabed.
Who were born on December 1?
1521 –
Takeda Shingen, Japanese warlord (d. 1573)
1761 –
Marie Tussaud, French creator of wax sculptures (Madame Tussauds) (d. 1850)
1869 –
Eligiusz Niewiadomski, Polish assassin of Gabriel Narutowicz (d. 1923)
1937 –
Muriel Costa-Greenspon, American mezzo-soprano (d. 2005)
1944 –
Eric Bloom, American musician (Blue Öyster Cult)
1961 –
Armin Meiwes, German cannibal
1971 –
Emily Mortimer, English actress
1975 –
Sophia Skou, Danish swimmer
1976 –
Laura Ling, American journalist
1977 –
Brad Delson, American guitarist (Linkin Park)
Who died on December 1?
1135 –
Henry I of England
1377 –
King Magnus II of Sweden (b. 1316)
1707 –
Jeremiah Clarke, English composer (b. 1674)
1884 –
William Swainson, British attorney and Attorney General of New Zealand (b. 1809)
1950 –
E. J. Moeran, English composer (b. 1894)
1964 –
Charilaos Vasilakos, Greek athlete, the first man to win a marathon race (b. 1877)
1984 –
Roelof Frankot, Dutch painter (b. 1911)
1986 –
Frank McCarthy, American producer (b. 1912)
1993 –
Ray Gillen, American rock singer (Badlands, Black Sabbath) (b. 1959)
2002 –
Dave McNally, American baseball player (b. 1942)