Wikipedia talk:Selected anniversaries/September 21

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This is the talk page for making suggestions or discussing improvements to Wikipedia:Selected anniversaries/September 21.

To report an error when this list is currently 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.
Before making a suggestion, please read the selected anniversaries guidelines. Please remember that this list usually defers to supporting pages when there is disagreement, so it is best to achieve consensus and make any necessary changes there first.
To discuss improvements to the corresponding September 21 article, see Talk:September 21 instead.

Frequently asked questions

Q1: Why is [Insert event here], an event that is "more important and significant" than all the others that are currently listed, not posted?: A1: Relative article quality along with the mix of topics already listed are often deciding factors in what gets posted. Any given day of the year can have a great many important or significant historical events. The problem is that there is generally only room on the Main Page to list about 5 events at a time, so not everything can be posted.

As stated on Wikipedia:FAQ/Main Page, the items and events posted on the Main Page are chosen based more on how well they are written, not based on how much important or significant their subjects are. It is easier for admins to select a well-written, cited, verifiable article over a poor one versus trying to determine objectively how much a subject is important or significant.

Keep in mind that the quality requirements only apply to the selected bolded article, not the other links. Thus, an event may qualify for multiple dates in a year if there is an article written in a summary style and an article providing detailed content; if one of those pages have cleanup issues, the other page can be bolded as an alternate.

Another criterion is to maintain some variety of topics, and not exhibit, just for example, tech-centrism, or the belief that the world stops at the edge of the English-speaking world. Many days have a large pool of potential articles, so they will rotate in and out every year to give each one some Main Page exposure. In addition, an event is not posted if it is also the subject of this year's scheduled featured article or featured picture.

Q2: There are way too many 20th-century events listed. Why aren't there more events from the 19th century and before?

A2: The short, basic reason is the systemic bias of Wikipedia. There are not enough good, well-written articles on 19th-century and earlier events for all 365 days in the year. Currently, a majority of users seem to be generally more interested in writing articles about recent events. If you would like to further help mitigate the systemic bias in Wikipedia, see Wikipedia:WikiProject Countering systemic bias.

Q3: This page seems to be biased toward events based in [Insert country or region here]. What can be done about it?

A3: This again is attributed to the systemic bias of Wikipedia. Many users are generally more interested in working on good, well-written articles pertaining to their home country. Since this is the English Wikipedia, there will be more English-speaking users, and thus more articles pertaining to English-speaking countries. And if there are more users who are from the United States, there will probably be more well-written articles about events based in the United States. Again, if you would like to further help mitigate the systemic bias in Wikipedia, see Wikipedia:WikiProject Countering systemic bias.

Q4: Why is the birthday/death anniversary of [Insert name here] not listed?

A4: There are only four slots available for birth and death anniversaries. As with the events, article quality and diversity in time period, geography, and reason for notability are all contributing factors in whether an article gets selected for inclusion.

Q5: Are the holidays/observances listed in any particular order?

A5: Yes, there is a specified order: International observances first, then alphabetically by where observed.

Q6: Some of the holidays/observances that are listed have dates in parentheses beside them. What do they mean?

A6: There are two reasons that some holidays/observances have dates next to them:

Non-Gregorian-based holidays/observances are marked with the current year as a reminder to others that their dates do in fact vary from year to year.
National Days, Independence Days, and other holidays celebrating the nationhood of a country are generally marked by the year of the significant historic date being observed.

Today's featured article for September 21, 2025
Wikipedia:Today's featured article/September 21, 2025 create – talk – watch
Picture of the day for September 21, 2025
The featured picture for this day has not yet been chosen. In general, pictures of the day are scheduled in order of promotion to featured status. See Wikipedia:Picture of the day/Guidelines for full guidelines. create

← Wikipedia talk:Selected anniversaries/September 20 * Wikipedia talk:Selected anniversaries/September 22 →

2012 notes

Deleted: French First Republic (moved to September 22—better date)
Omitted: Battle of Prestonpans; Angel Moroni (ineligible—maintenance); Yes, Virginia, there is a Santa Claus; Operation Moolah; Letelier case (ineligible—maintenance)
Included: Great Fire of New York (1776) (first appearance); Battle of Palikao (first appearance); 1938 New England hurricane (2nd appearance, last in 2007); Boeing B-29 Superfortress (6th appearance, last in 2010); 921 earthquake (3rd appearance, last in 2010)

—howcheng {chat} 02:35, 21 September 2012 (UTC)[reply]

2013 notes

New articles (unused): Consejo Mundial de Lucha Libre
Omitted: Great Fire of New York (1776); Boeing B-29 Superfortress; Rhodesian mission in Lisbon; 921 earthquake
Included: Peace One Day (rescued from Ineligible); Battle of Prestonpans (4th appearance, last in 2011); Oppau explosion (first appearance); Operation Moolah (2nd appearance, last in 2011; 60th anniversary)
Repeats: Battle of Palikao (2nd consecutive appearance, 2 total); 1938 New England hurricane (2nd consecutive appearance, 3 total; 75th anniversary)

—howcheng {chat} 07:06, 20 September 2013 (UTC)[reply]

2014 notes

New articles (unused): Westgate shopping mall attack
Omitted: Peace One Day (deleted—not an observance, but an organization); Belize (ineligible—maintenance); Malta (ineligible—maintenance); Battle of Prestonpans; Oppau explosion; 1938 New England hurricane (ineligible—maintenance); Operation Moolah
Included: Yes, Virginia, there is a Santa Claus (2nd appearance, last in 2011); Consejo Mundial de Lucha Libre (first appearance); Armand Călinescu (3rd appearance, last in 2010; 75th anniversary); 921 earthquake (4th appearance, last in 2012)
Repeats: Battle of Palikao (3rd consecutive appearance, 3 total)

—howcheng {chat} 16:24, 19 September 2014 (UTC)[reply]

2015 notes

Added and deleted: Alingsås (not notable enough)
Rescued from Ineligible (unused): 1938 New England hurricane
Omitted: Yes, Virginia, there is a Santa Claus; Consejo Mundial de Lucha Libre; Armand Călinescu; 921 earthquake
Included: Great Fire of New York (1776) (first appearance); The Hobbit (7th appearance, last in 2010); Rhodesian mission in Lisbon (first appearance; 50th anniversary); Westgate shopping mall attack (first appearance)
Repeats: Battle of Palikao (4th consecutive appearance, 4 total)

—howcheng {chat} 03:55, 20 September 2015 (UTC)[reply]

2016 notes

Moved to Ineligible: Battle of Prestonpans (maintenance); Oppau explosion (maintenance)
Omitted: Armenia (ineligible—maintenance); Great Fire of New York (1776); The Hobbit (ineligible—maintenance); Rhodesian mission in Lisbon; Westgate shopping mall attack
Included: Ascall mac Ragnaill (first appearance); Armand Călinescu (4th appearance, last in 2014); Operation Moolah (3rd appearance, last in 2013); Defense of Marriage Act (first appearance; 20th anniversary)
Repeats: Battle of Palikao (5th consecutive appearance, 5 total)

—howcheng {chat} 21:33, 20 September 2016 (UTC)[reply]

2017 notes

Moved to Ineligible: Hurricane Rita (maintenance)
Omitted: Battle of Palikao; Armand Călinescu; Operation Moolah; Defense of Marriage Act
Included: Yes, Virginia, there is a Santa Claus (3rd appearance, last in 2014); The Hobbit (8th appearance, last in 2014; 80th annivrsary); In Utero (album) (first appearance); Murder of Ross Parker (first appearance); Barbara Longhi (first appearance); H. G. Wells (first appearance); Leonard Cohen (first appearance)
Repeats: Ascall mac Ragnaill (2nd consecutive appearance, 2 total)

—howcheng {chat} 15:57, 21 September 2017 (UTC)[reply]

2018 notes

Moved to Ineligible: Battle of Palikao (maintenance)
Rescued from Ineligible (unused): Sandra Day O'Connor
New articles (unused): Faith Hill
Omitted: Ascall mac Ragnaill; Yes, Virginia, there is a Santa Claus; The Hobbit; In Utero (album) (it's the 25th anniversary, but including it would mean 3 US items); Murder of Ross Parker; Barbara Longhi; H. G. Wells; Leonard Cohen
Included: Angel Moroni (2nd appearance, last in 2011; rescued from Ineligible); 1938 New England hurricane (4th appearance, last in 2013; rescued from Ineligible; 80th anniversary); Massacre of the Acqui Division (first appearance; 75th anniversary); Rhodesian mission in Lisbon (2nd appearance, last in 2015); Westgate shopping mall attack (2nd appearance, last in 2015); Arthur Schopenhauer (first appearance); Helen Foster Snow (first appearance); Kareena Kapoor (first appearance)

—howcheng {chat} 16:25, 21 September 2018 (UTC)[reply]

2019 notes

Moved to Ineligible: H. G. Wells (maintenance); Faith Hill (maintenance)
Omitted: Angel Moroni; 1938 New England hurricane; Massacre of the Acqui Division; Rhodesian mission in Lisbon; Westgate shopping mall attack; Arthur Schopenhauer; Helen Foster Snow; Kareena Kapoor
Included: Battle of Prestonpans (5th appearance, last in 2013; rescued from Ineligible); Great Fire of New York (1776) (3rd appearance, last in 2015); Assassination of Armand Călinescu (first appearance; 80th anniversary); Zond 5 (first appearance); 1999 Jiji earthquake (5th appearance, last in 2014; 20th anniversary); Andrew II of Hungary (first appearance); Polyxena of Hesse-Rotenburg (first appearance); Florence Griffith Joyner (first appearance)

—howcheng {chat} 15:57, 23 September 2019 (UTC)[reply]

2020 notes

Moved to Ineligible: Operation Moolah (maintenance)
Rescued from Ineligible (unused): H. G. Wells; Faith Hill
New articles (unused): Antonio de Vea expedition
Omitted: Great Fire of New York (1776); Assassination of Armand Călinescu (ineligible—maintenance); Zond 5; 1999 Jiji earthquake; Andrew II of Hungary; Polyxena of Hesse-Rotenburg; Florence Griffith Joyner
Included: Ascall mac Ragnaill (3rd appearance, last in 2017); Rhodesian mission in Lisbon (3rd appearance, last in 2018); Abu Ishaq Ibrahim (first appearance); Emanuel Schikaneder (first appearance); Kay Ryan (first appearance; 75th anniversary)
Repeats: Battle of Prestonpans (2nd consecutive appearance, 6 total; 275th anniversary)

—howcheng {chat} 06:58, 23 September 2020 (UTC)[reply]

2021 notes

Deleted: Sandra Day O'Connor (moved to September 25)
Moved to Ineligible: Faith Hill (maintenance)
Omitted: Ascall mac Ragnaill; Battle of Prestonpans; Rhodesian mission in Lisbon; Abu Ishaq Ibrahim; Emanuel Schikaneder; Kay Ryan
Included: Antonio de Vea expedition; Angel Moroni (3rd appearance, last in 2018); Zond 5 (2nd appearance, last in 2019); Murder of Ross Parker (2nd appearance, last in 2017; 10th anniversary); Leonello d'Este, Marquis of Ferrara (first appearance); Charles Nicolle (first appearance); Jacqueline Susann (first appearance)

—howcheng {chat} 08:00, 22 September 2021 (UTC)[reply]

2022 notes

Omitted: Antonio de Vea expedition; Angel Moroni; Murder of Ross Parker; Leonello d'Este, Marquis of Ferrara; Charles Nicolle; Jacqueline Susann
Included: Ascall mac Ragnaill (4th appearance, last in 2020); Great Fire of New York (1776) (4th appearance, last in 2019); 1934 Muroto typhoon (first appearance); The Hobbit (2nd appearance, last in 2017); Andrew II of Hungary (2nd appearance, last in 2019); H. G. Wells (2nd appearance, last in 2017); Kareena Kapoor (2nd appearance, last in 2018)
Repeats: Zond 5 (2nd consecutive appearance, 3 total)

—howcheng {chat} 17:21, 26 September 2022 (UTC)[reply]