What are the important events that happened on March 31? Here are historical events, facts, and some myths about this day.

March 31: Facts & Myths About This Day

March 31 is the 90^th 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.

Under the Julian calendar, this day is March 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, 484,272 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 ‘enneacontagon’ day.

Aries is the zodiac 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.

The ancient Maya civilization believes that the end of the world will happen on December 21, 2012. There are now 4,483 days since this fabled cataclysmic event.

March 31 Historical Events

• 307 –
  After divorcing his wife Minervina, Constantine marries Fausta, the daughter of the retired Roman Emperor Maximian.
• 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.
• 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.
• 1918 –
  Massacre of ethnic Azerbaijanis is committed by allied armed groups of Armenian Revolutionary Federation and Bolsheviks. Nearly 12,000 Azerbaijani Muslims are killed.
• 1931 –
  TWA Flight 599 crashes near Bazaar, Kansas killing 8 including Knute Rockne, head football coach at the University of Notre Dame
• 1933 –
  The Civilian Conservation Corps is established with the mission of relieving rampant unemployment.
• 1951 –
  Remington Rand delivers the first UNIVAC I computer to the United States Census Bureau.
• 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.
• 2004 –
  Iraq War in Anbar Province - In Fallujah, Iraq, 4 American private military contractors working for Blackwater USA, are killed after being ambushed.

Who were born on March 31?

• 1621 –
  Andrew Marvell, English poet (d. 1678)
• 1906 –
  Shin'ichiro Tomonaga, Japanese physicist, Nobel laureate (d. 1979)
• 1920 –
  Deborah Cavendish, Duchess of Devonshire, English noble
• 1927 –
  William Daniels, American actor
• 1935 –
  Judith Rossner, American author
• 1944 –
  Pascal Danel, French singer and songwriter
• 1955 –
  Robert Vance, New Zealand cricketer
• 1969 –
  Steve Smith, American basketball player
• 1976 –
  Josh Saviano, American actor
• 1979 –
  Josh Kinney, American baseball player

Who died on March 31?

• 1727 –
  Sir Isaac Newton, English mathematician and physicist (b. 1643)
• 1850 –
  John C. Calhoun, 7th Vice President of the United States (b. 1782)
• 1945 –
  Anne Frank, German-born diarist (b. 1929)
• 1945 –
  Hans Fischer, German chemist, Nobel laureate (b. 1881)
• 1980 –
  Jesse Owens, American athlete (b. 1913)
• 1981 –
  Enid Bagnold, British playwright (b. 1889)
• 1993 –
  Chichay, Filipino actress (b. 1918)
• 2001 –
  David Rocastle, English footballer (b. 1967)
• 2003 –
  Tommy Seebach, Danish singer (b. 1949)
• 2009 –
  Jarl Alfredius, Swedish news anchor (b. 1943)