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Wikipedia:Selected anniversaries/May 20

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This is an old revision of this page, as edited by Holly Cheng (talk | contribs) at 18:26, 19 May 2013 (-1 for Main Page balance). 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 May 20 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.

May 19 May 21
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Ineligible

Blurb Reason
1293Sancho IV, King of Castile and León, established what is now the Complutense University of Madrid, today one of Spain's top public universities. unreferenced section
1498 – Portuguese explorer Vasco da Gama arrived at Calicut, India, opening up trade with the Far East directly by sea. appears on February 12
1570 – The first modern atlas, Theatrum Orbis Terrarum by cartographer Abraham Ortelius, was issued. refimprove
1882 – The Triple Alliance was created between Germany, Austria-Hungary and Italy. unreferenced section, date not verified
1902 – Cuba officially gained independence from the United States, with Tomás Estrada Palma becoming its first president. needs more footnotes
1969Vietnam War: After ten days of battle, U.S. infantry troops captured the strategically insignificant Hill 937, only to abandon it two weeks later. needs more footnotes
1996 – The U.S. Supreme Court struck down laws in Colorado that would have prevented any city, town or county in the state from taking any legislative, executive, or judicial action to protect homosexual citizens from discrimination on the basis of their sexual orientation. refimprove

Eligible

May 20: Day of Remembrance in Cambodia; National Day in Cameroon (1972); Victoria Day in Canada (2013); Independence Day in East Timor (2002); National Awakening Day in Indonesia (1908)

Ibn Saud

  • 1875 – Representatives from seventeen countries signed the Metre Convention which set up an institute for the purpose of coordinating international metrology and for coordinating the development of the metric system.
More anniversaries: