What are the important events that happened on December 15? Here are historical events, facts, and some myths about this day.
December 15: Facts & Myths About This Day
December 15 is the 349th day of the year 2025 in the Gregorian calendar. There are 16 days remaining until the end of this year. The day of the week is Monday.
Under the Julian calendar, this day is December 2, 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, 490,488 hours 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 ‘trihectatetracontaenneagon’ day.
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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 64 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 4,742 days since this fabled cataclysmic event.
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December 15 Historical Events
1791 –
The United States Bill of Rights becomes law when ratified by the Virginia General Assembly.
1946 –
US-backed Iranian troops evict the leadership of the breakaway Republic of Mahabad, putting an end to the Iran crisis of 1946.
1960 –
King Mahendra of Nepal suspends the country’s constitution, dissolves parliament, dismisses the cabinet, and imposes direct rule.
1965 –
Gemini program: Gemini 6A, crewed by Wally Schirra and Thomas Stafford, is launched from Cape Kennedy, Florida. Four orbits later, it achieves the first space rendezvous, with Gemini 7.
1967 –
The Silver Bridge collapses, killing 46 people.
1970 –
South Korean ferry Namyong Ho capsizes off Korean Strait killing 308.
1970 –
Soviet spacecraft Venera 7 successfully land on Venus. It is the first successful soft landing on another planet
1976 –
Samoa becomes a member of the United Nations.
1976 –
The oil tanker MV Argo Merchant runs aground near Nantucket, Massachusetts, causing one of the worst marine oil spills in history.
2009 –
Boeing’s new Boeing 787 Dreamliner makes its maiden flight from Seattle, Washington.
Who were born on December 15?
1860 –
Niels Ryberg Finsen, Danish physician, Nobel laureate (d. 1904)
1902 –
Robert F. Bradford, 57th Governor of Massachusetts (d. 1983)
1911 –
Nicholas P. Dallis, American psychiatrist and comic strip writer (d. 1991)
1917 –
Shan-ul-Haq Haqqee, linguist and writer of Pakistan (d. 2005)
1948 –
Melanie Chartoff, American actress
1952 –
Allan Simonsen, Danish footballer
1961 –
Karin Resetarits, Austrian journalist
1963 –
Helen Slater, American actress
1976 –
Baichung Bhutia, Indian footballer
1981 –
Firman Utina, Indonesian footballer
Who died on December 15?
1621 –
Charles d'Albert, Constable of France (b. 1578)
1675 –
Johannes Vermeer, Dutch painter (b. 1632)
1855 –
Jacques Charles François Sturm, French mathematician (b. 1803)
1890 –
Sitting Bull, American Indian tribal chief (b. c. 1831)
1968 –
Antonio Barrette, Canadian politician (b. 1899)
1974 –
Anatole Litvak, Ukrainian screenwriter and film producer (b. 1902)
2005 –
Stan Leonard, Canadian golfer (b. 1915)
2007 –
John Berg, American actor (b. 1949)
2007 –
Julia Carson, American politician (b. 1938)
2008 –
León Febres Cordero, Ecuadorian politician (b. 1931)
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