Wikipedia:Selected anniversaries/April 12

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This is a list of selected April 12 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 five to six 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.

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Blurb Reason
240Shapur I was crowned shahanshah ("king of kings") of the Sasanian Empire, the last Iranian empire before the rise of Islam. refimprove, unreferenced section
467Anthemius was proclaimed Western Roman Emperor at the third or twelfth mile from Rome. refimprove section
1204Alexios V Doukas fled Constantinople as forces under Boniface the Marquess of Montferrat and Enrico Dandolo the Doge of Venice entered and sacked the Byzantine capital, effectively ending the Fourth Crusade. refimprove section
1606 – A royal decree established the Union Jack to symbolise the Union of the Crowns, merging the designs of the Flag of England and the Flag of Scotland. unreferenced sections, refimprove section
1782American Revolutionary War: The Royal Navy defeated a French fleet in the Battle of the Saintes, forcing the latter to abandon a planned invasion of Jamaica. unreferenced section
1927Chinese Civil War: A large-scale purge of communists from the nationalist Kuomintang began in Shanghai. refimprove section
1980Samuel Doe took control of Liberia in a coup d'etat, overthrowing President William R. Tolbert, Jr. and ending over 130 years of national democratic presidential succession. needs more footnotes
1981Columbia, the first spaceworthy space shuttle, was launched from the Kennedy Space Center in Florida for its first flight. refimprove section
1990Jim Gary became the only sculptor to present a solo show at the Smithsonian Institution's National Museum of Natural History in Washington, D.C., featuring his trademark dinosaur sculptures made of automobile parts. unreferenced section
1992Disneyland Paris, the first Walt Disney Park in Europe, opened in the Paris suburb of Marne-la-Vallée. refimprove section
1994 – Husband-and-wife law partners Laurence Canter and Martha Siegel posted the first massive commercial spam on Usenet. citation-needed tags



April 12: Yuri's Night; Cosmonautics Day in Russia

 Terry Fox
 Terry Fox

George N. Briggs (b. 1796) · Imogen Holst (b. 1907) · Karim Fakhrawi (d. 2011)

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