Wikipedia:Selected anniversaries/April 1

Eligible

 * 1234 – Richard Marshal, Earl of Pembroke, was defeated by knights loyal to King Henry III of England at the Battle of the Curragh in County Kildare, Ireland.
 * 1293 – Robert Winchelsey left England for Rome to be consecrated Archbishop of Canterbury, but a papal vacancy delayed the ceremony.
 * 1340 – A band of warriors led by Niels Ebbesen killed Count Gerhard III, ending Holstein rule in Denmark.
 * 1833 – Mexican Texans met at San Felipe de Austin to begin the Convention of 1833.
 * 1865 – American Civil War: The Union Army under Major General Philip Sheridan (pictured) inflicted more than 2,900 casualties on the Confederates at the Battle of Five Forks.
 * 1879 – The Inland Customs Line, established by the British for the collection of the salt tax in India, was abandoned.
 * 1918 – The United Kingdom established the Royal Air Force, near the end of the First World War.
 * 1922 – Under the South Seas Mandate, Japan set up a government in Koror, precipitating large-scale Japanese settlement in Palau.
 * 1933 – English cricketer Wally Hammond set a record for the highest individual score in Test cricket of 336 not out during a match against New Zealand.
 * 1941 – Soviet border guards opened fire on civilians attempting to cross the border from the Soviet Union to Romania near Fântâna Albă, killing between 44 and 3,000 people.
 * 1963 – On Her Majesty's Secret Service, the tenth novel of Ian Fleming's James Bond series, was released in the United Kingdom.
 * 1970 – U.S. president Richard Nixon signed the Public Health Cigarette Smoking Act into law, requiring that a prominent warning by the surgeon general be placed on cigarette packages.
 * 1970 – The American Motors Corporation introduced its Gremlin, promoted as America's first subcompact car.
 * 1990 – The longest prison riot in British penal history began at Strangeways Prison in Manchester, lasting 25 days.
 * 2001 – An American Lockheed EP-3 and a Chinese Shenyang J-8 collided in mid-air off Hainan, resulting in an international dispute between the two countries.
 * Born/died this day: | Franz Egon von Fürstenberg-Heiligenberg |d|1682| Joseph de Maistre |b|1753| Giuditta Pasta |d|1865| Ferruccio Busoni |b|1866| F. D. Maurice |d|1872| Marvin Gaye |d|1984| Henri Cochet |d|1987|Jofra Archer |b|1995| Cynthia Lennon |d|2015