Wikipedia:Selected anniversaries/March 31

This is a list of selected March 31 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.

Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article or picture of the day.

To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.

March 30 April 1
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Ineligible

Blurb Reason
Freedom Day in Malta stub
1492 – The Catholic Monarchs of Spain issued the Alhambra Decree, ordering all Jews to convert to Christianity or be expelled from the country. refimprove section
1717 – A sermon on The Nature of the Kingdom of Christ by Benjamin Hoadly, the Bishop of Bangor, ignited the Bangorian Controversy, a theological argument within the Church of England about whether the church should have any disciplinary authority. unreferenced section
1778 – English explorer James Cook landed on Vancouver Island and claimed it for Great Britain. refimprove sections
1903 – New Zealand inventor Richard Pearse reportedly flew in one of the first powered flying machines for a distance of several hundred metres, about nine months before the Wright brothers flew their Wright Flyer. unreferenced section, refimprove section
1917 – The Danish West Indies became the U.S. Virgin Islands after the United States paid Denmark US$25 million for the Caribbean islands. lots of CN tags
1931 – A TWA Fokker trimotor crashed in Chase County, Kansas, U.S., and killed eight people, including football coach Knute Rockne, stimulating advances in aircraft design and development. refimprove
1951 – The first UNIVAC I, the first commercial computer made in the United States, was delivered to the United States Census Bureau. refimprove section
1964 – The Brazilian Armed Forces overthrew President João Goulart, establishing a military dictatorship that lasted 21 years. primary sources and OR section

Eligible

March 31: Cesar Chavez Day in various U.S. states (1927)

Eiffel Tower
Eiffel Tower
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