Wikipedia:Selected anniversaries/September 21

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This is a list of selected September 21 anniversaries that appears on 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 soon will 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 5–6 events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is not generally posted this year if it is also the subject of the scheduled September 21, 2018 featured article or the September 21, 2018 featured picture.

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.

< September 20 September 22 >

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Blurb Reason
Oktoberfest begins (2012); refimprove section, needs cleanup
Independence Day in Armenia (1991), Belize (1981) and Malta (1964) Armenia: refimprove section; Belize: outdated; Malta: refimprove section
454Roman emperor Valentinian III killed Aetius in Ravenna. unreferenced section
1745Jacobite risings: Jacobite troops led by Charles Edward Stuart defeated the Hanoverians in Prestonpans, East Lothian, Scotland. refimprove
1823 – According to Joseph Smith, Jr., he was first visited by the angel Moroni, who would guide him to the golden plates that became the basis of the Book of Mormon. Unreferenced section
1898 – The Hundred Days' Reform in China was abruptly terminated when Empress Dowager Cixi forced the reform-minded Guangxu Emperor into seclusion and took over the government as regent. needs more footnotes
1921 – A tower silo storing 4,500 tonnes of a mixture of ammonium sulfate and ammonium nitrate fertilizer exploded at a BASF plant in Oppau, Germany, killing at least 500 people. refimprove
1942 – The prototype model of the Boeing B-29 Superfortress, a four-engine heavy bomber that became one of the largest aircraft to see service during World War II, flew for the first time. refimprove section
1976 – Chilean political figure Orlando Letelier was assassinated in Washington, D.C., by DINA agents. refimprove section
1981Sandra Day O'Connor became the first female Justice of the Supreme Court of the United States. refimprove section
2005Hurricane Rita, the most intense tropical cyclone ever observed in the Gulf of Mexico, achieved Category 5 status, and left up to 125 dead over the following days. refimprove section


September 21: International Day of Peace; Islamic New Year (2017, 1439 AH); first day of Rosh Hashanah (Judaism, 2017, AM 5778)

Virginia O'Hanlon
Virginia O'Hanlon

Barbara Longhi (b. 1552) · H. G. Wells (b. 1866) · Leonard Cohen (b. 1934)

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