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.
- 1146 –Bernard of Clairvaux preaches his famous sermon in a field at Vézelay, urging the necessity of a Second Crusade. Louis VII is present, and joins the Crusade.
- 1717 –A sermon on “The Nature of the Kingdom of Christ” by Benjamin Hoadly, the Bishop of Bangor, provokes the Bangorian Controversy.
- 1774 –American Revolutionary War: The Kingdom of Great Britain orders the port of Boston, Massachusetts closed pursuant to the Boston Port Act.
- 1854 –Commodore Matthew Perry signs the Treaty of Kanagawa with the Japanese government, opening the ports of Shimoda and Hakodate to American trade.
- 1877 –The family with samurai antecedents that responded to the Saigō army in Ōita Nakatsu, rebels.
- 1903 –Richard Pearse allegedly makes a powered flight in an early aircraft.
- 1909 –Serbia accepts Austrian control over Bosnia and Herzegovina.
- 1917 –The United States takes possession of the Danish West Indies after paying $25 million to Denmark, and renames the territory the United States Virgin Islands.
- 1945 –World War II: a defecting German pilot delivers a Messerschmitt Me 262A-1, the world’s first operational jet-powered fighter aircraft, to the Americans, the first to fall into Allied hands.
- 1958 –In the Canadian federal election, the Progressive Conservatives, led by John Diefenbaker, win the largest percentage of seats in Canadian history, with 208 seats of 265.
- 1959 –The 14th Dalai Lama, Tenzin Gyatso, crosses the border into India and is granted political asylum.
- 1965 –An Iberia Airlines Convair 440 crashes into the sea on approach to Tangier, killing 47 of 51 occupants.
- 1966 –The Soviet Union launches Luna 10 which later becomes the first space probe to enter orbit around the Moon.
- 1979 –The last British soldier leaves the Maltese Islands. Malta declares its Freedom Day (Jum il-Helsien).
- 1980 –The Chicago, Rock Island and Pacific railroad operates its final train after being ordered to liquidate its assets because of bankruptcy and debts owed to creditors.
- 1986 –A Mexicana Boeing 727 en route to Puerto Vallarta erupts in flames and crashes in the mountains northwest of Mexico City, killing 166.
- 1991 –The Islamic Constitutional Movement, or Hadas, is established in Kuwait.
- 1992 –The USS Missouri, the last active United States Navy battleship, is decommissioned in Long Beach, California.
- 1995 –Selena, an American singer, was murdered by her friend and employee of her boutiques Yolanda Saldívar who was embezzling money from the establishments. The event was named “Black Friday” by Hispanics.
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