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Wikipedia:Selected anniversaries/April 11

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This is an old revision of this page, as edited by Yngvadottir (talk | contribs) at 12:46, 11 April 2014 ("over 200 more" -> "more than 200" as per Main Page/Errors.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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This is a list of selected April 11 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, featured list 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.

April 10 April 12
Staging area

Images

Use only ONE image at a time

Ineligible

Blurb Reason
Juan Santamaría Day in Costa Rica refimprove
1241Mongol invasion of Europe: Mongols led by Batu Khan and Subutai crushed the Hungarian army of King Béla IV at the Battle of Mohi near the Sajó River in Hungary. refimprove section
1713 – The main agreements of the Treaty of Utrecht were signed in the Dutch city of Utrecht, helping to end the War of the Spanish Succession. refimprove section
1828Bahía Blanca in Argentina was founded as a fortress to protect dwellers and their cattle from native rustling, and to protect the coast from the Brazilian Navy. citations need formatting
1921 – Emir Abdullah established the first centralized government in the recently created British protectorate of Transjordan. title disputed
1965 – Almost 50 confirmed tornadoes struck six states in the Midwestern United States during the Palm Sunday tornado outbreak, killing over 270 people and injuring 1,500 others. needs more footnotes
1981 – Tensions between residents and the police in Brixton, South London, escalated into a massive riot that resulted in almost 300 police injuries, 45 civilian injuries, over a hundred vehicles burned, and over 150 buildings damaged. refimprove
1986 – Eight FBI agents exchanged gunfire with two bank robbers in Miami, Florida, an incident which led to the introduction of more powerful handguns in many police departments around the country. unreferenced section
2002 – In a coup attempt, members of the Venezuelan military detained President Hugo Chávez and demanded his resignation. multiple issues

Eligible

April 11

The Concertgebouw, Amsterdam

More anniversaries: