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Wikipedia:Selected anniversaries/April 23

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This is an old revision of this page, as edited by Nyttend (talk | contribs) at 11:58, 23 April 2012 (Original formula would be illegal). 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 23 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.

April 22 April 24
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Images

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Ineligible

Blurb Reason
1014 – Irish forces led by Brian Boru clashed with the Vikings in the Battle of Clontarf. refimprove
1827 – Irish mathematician and physicist William Rowan Hamilton presented his Theory of Systems of Rays. needs more footnotes
1920 – The Grand National Assembly of Turkey, the Turkish unicameral parliament, was founded in Ankara in the midst of the Turkish War of Independence. empty sections, needs expansion
1923Gdynia was inaugurated as a Polish seaport on the coast of Gdańsk Bay, a southwestern bay of the Baltic Sea. refimprove
1935 – Poland adopted a new constitution, introducing a presidential system with certain elements of authoritarianism. Stubby
1968 – Students protesting the Vietnam War at Columbia University in New York City took over administration buildings and shut down the university. original research

Eligible

April 23: World Book and Copyright Day; St George's Day in various countries; Children's Day in Turkey

  • 1985The Coca-Cola Company introduced "New Coke" to replace its flagship soft drink Coca-Cola, which generated so much negative response that the company put the previous formula back on the market less than three months later.
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