Wikipedia:Selected anniversaries/March 30

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 * 1861 – British chemist William Crookes published his discovery of thallium using flame spectroscopy.
 * 1867 – U.S. secretary of state William H. Seward negotiated the purchase of Alaska from Russia for US$7.2 million.
 * 1918 – Four days of inter-ethnic clashes broke out in Baku, Azerbaijan, resulting in about 12,000 deaths.
 * 1921 – The Australian Air Corps was disbanded, to be replaced the following day by the Australian Air Force.
 * 1950 – Usmar Ismail began shooting Darah dan Doa, widely recognised as the first Indonesian film.
 * 1972 – Vietnam War: North Vietnamese forces began the Easter Offensive in an attempt to gain as much territory and destroy as many South Vietnamese units as possible.
 * 1981 – John Hinckley Jr. shot and wounded U.S. president Ronald Reagan and three others outside the Washington Hilton (immediate aftermath pictured).


 * Born/died: | Ralph Sadler |d|1587| Kazimierz Łyszczyński |d|1689| Juan Manuel de Rosas |b|1793 | Anna Sewell |b|1820| Beau Brummell |d|1840| Élisabeth Vigée Le Brun |d|1842| Stefan Banach |b|1892| Philip Showalter Hench |d|1965| Celine Dion |b|1968 | Fred Korematsu |d|2005|

March 30: Land Day in Palestinian communities (1976)


 * 1822 – The United States merged East Florida and West Florida to create the Florida Territory.
 * 1912 – Sultan Abd al-Hafid signed the Treaty of Fes (depicted), making Morocco a French protectorate.
 * 1977 – Annie Hall had its first screening at the LA Film Festival; it would later be voted the funniest screenplay ever by members of the Writers Guild of America.
 * 2009 – The Manawan Police Academy in Lahore, Pakistan, was attacked and held for several hours by 12 gunmen, resulting in 16 deaths and 95 injuries.