About March 31
March 31, 2025 is the 90th day of the year 2025 in the Gregorian calendar. There are 275 days remaining until the end of this year. The day of the week is Monday.
You can browse the full year calendar in case you need it.
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Aries is the sun sign of a person born on this day. Aquamarine is the modern birthstone for this month. Jade is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 323 days remaining before the start of the next Chinese New Year.
What Happened On March 31
- 307 –After divorcing his wife Minervina, Constantine marries Fausta, the daughter of the retired Roman Emperor Maximian.
- 1717 –A sermon on “The Nature of the Kingdom of Christ” by Benjamin Hoadly, the Bishop of Bangor, provokes the Bangorian Controversy.
- 1822 –The massacre of the population of the Greek island of Chios by soldiers of the Ottoman Empire following an attempted rebellion, depicted by the French artist Eugène Delacroix.
- 1854 –Commodore Matthew Perry signs the Treaty of Kanagawa with the Japanese government, opening the ports of Shimoda and Hakodate to American trade.
- 1885 –The United Kingdom establishes a protectorate over Bechuanaland.
- 1889 –The Eiffel Tower is officially opened.
- 1906 –The Intercollegiate Athletic Association of the United States (later the National Collegiate Athletic Association) is established to set rules for college sports in the United States.
- 1909 –Serbia accepts Austrian control over Bosnia and Herzegovina.
- 1930 –The Motion Pictures Production Code is instituted, imposing strict guidelines on the treatment of sex, crime, religion and violence in film, in the U.S., for the next thirty eight years.
- 1931 –TWA Flight 599 crashes near Bazaar, Kansas killing 8 including Knute Rockne, head football coach at the University of Notre Dame
- 1942 –World War II: Japanese forces invade Christmas Island, then a British possession.
- 1957 –Elections to the Territorial Assembly of the French colony Upper Volta are held. After the elections PDU and MDV form a government.
- 1959 –The 14th Dalai Lama, Tenzin Gyatso, crosses the border into India and is granted political asylum.
- 1964 –A coup d'état in Brazil establishes a military government, under the aegis of general Castello Branco.
- 1965 –An Iberia Airlines Convair 440 crashes into the sea on approach to Tangier, killing 47 of 51 occupants.
- 1970 –Nine terrorists from the Japanese Red Army hijack Japan Airlines Flight 351 at Tokyo International Airport, wielding samurai swords and carrying a bomb.
- 1985 –The first WrestleMania, the biggest wrestling event from the WWE (then the WWF), takes place in Madison Square Garden in New York.
- 1991 –Georgian independence referendum, 1991: nearly 99 percent of the voters support the country’s independence from the Soviet Union.
- 1994 –Human evolution: The journal Nature reports the finding in Ethiopia of the first complete Australopithecus afarensis skull.
- 2004 –Iraq War in Anbar Province - In Fallujah, Iraq, 4 American private military contractors working for Blackwater USA, are killed after being ambushed.
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