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Wikipedia:Selected anniversaries/September 23

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This is an old revision of this page, as edited by Holly Cheng (talk | contribs) at 16:53, 23 September 2013 (per WP: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 September 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.

Staging area

Images

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Ineligible

Blurb Reason
September Equinox (09:04 UTC, 2011); unreferenced sections
1845 – American bookseller Alexander Cartwright founded the New York Knickerbockers, one of the first organized baseball teams, as well as formalizing a set of rules that became the basis for the rules of the modern game. needs more footnotes
1846 – Using mathematical predictions by French mathematician Urbain Le Verrier, German astronomer Johann Gottfried Galle became the first person to observe Neptune and recognise it as a hitherto unknown planet. neutrality issues
1889Fusajiro Yamauchi founded Nintendo in Kyoto, Japan, to produce handmade hanafuda cards. refimprove, original research

Eligible

September 23: National Day in Saudi Arabia (1932); Celebrate Bisexuality Day

Ramón Emeterio Betances

More anniversaries: