Wikipedia:Selected anniversaries/September 23
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, 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.
Images
Use only ONE image at a time
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Richard Nixon delivering Checkers speech -
Benedict Arnold -
Ramon Betances -
Ramón Emeterio Betances -
Neptune
Ineligible
| Blurb | Reason |
|---|---|
| 1123 – Pope Callixtus II and Holy Roman Emperor Henry V agreed to the Concordat of Worms to put an end to the Investiture Controversy. | unreferenced section, lots of CN tags |
| 1459 – Yorkist forces led by Richard Neville defeated Lancastrian troops at the Battle of Blore Heath in Staffordshire, England, a major battle of the Wars of the Roses. | refimprove section |
| 1779 – American Revolutionary War: John Paul Jones led a Franco-American squadron to victory in the Battle of Flamborough Head, one of the most celebrated naval actions of the war. | rewrite, primary |
| 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. | Neptune is POTD for 2019 |
| 1875 – Billy the Kid (pictured) was arrested for the first time after stealing clothes from a laundryman, beginning his life as an infamous American outlaw and gunman. | Hook contradicts the article lede, which says his first arrest was for stealing food. It also says the laundry incident was ten days after the 16th September, which isn't today |
| 1889 – Fusajiro Yamauchi founded Nintendo in Kyoto, Japan, to produce handmade hanafuda cards. | expansion |
| 1899 – Philippine–American War: The American Asiatic Squadron destroyed a Filipino artillery battery in Olongapo. | one source |
| 1932 – The Kingdom of Hejaz and Nejd merged with Al-Hasa and Qatif to form the Kingdom of Saudi Arabia, with Ibn Saud as the first monarch and Riyadh as the capital city. | refimprove |
| 1983 – A bomb placed by the Abu Nidal organisation destroyed Gulf Air Flight 771, flying from Karachi, Pakistan, to Abu Dhabi, UAE, killing all 112 people aboard. | expansion |
| El Santo (b. 1917) | refimprove section |
| Bruce Springsteen (b. 1949) | refimprove |
Eligible
- 1868 – Ramón Emeterio Betances led the Grito de Lares, a revolt against Spanish rule in Puerto Rico.
- 2008 – A gunman shot and killed ten students at Seinäjoki University of Applied Sciences in Kauhajoki, Western Finland, before committing suicide.
- 2010 – Teresa Lewis became the first woman to be executed by the U.S. state of Virginia since 1912, and the first woman in the state to be executed via lethal injection.
- Born this day: Eleonora Gonzaga (b. 1598) · Émilie Gamelin (d. 1851) · Vincenzo Bellini (d. 1835) · Louise Nevelson (b. 1899) · Ambroise Noumazalaye (b. 1933) · Cherie Blair (b. 1954) · Sean Spicer (b. 1971)
September 23: Celebrate Bisexuality Day; National Day in Saudi Arabia (1932)
- 1780 – American Revolutionary War: British officer John André was captured by Patriot forces, thereby revealing a plot by Continental Army General Benedict Arnold to hand over West Point, New York.
- 1803 – Maratha troops were defeated by forces of the British East India Company at the Battle of Assaye, one of the decisive battles of the Second Anglo-Maratha War.
- 1952 – U.S. vice-presidential candidate Richard Nixon delivered the "Checkers speech" (pictured), one of the first political uses of television to appeal directly to the populace.
- 2002 – The initial version of the Firefox web browser was released by the Mozilla Organization.
- 2016 – Following a number of high-profile sexual assaults, major reforms were enacted to strengthen laws related to rape in Germany.
John Ainsworth Horrocks (d. 1846) · Kostas Tournas (b. 1949) · Michiru Yamane (b. 1963)