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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 June 16 article, see Talk:June 16 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?
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.
Included: Cornwallis's Retreat (first appearance); James Joyce (3rd appearance, last in 2010; rescued from Ineligible); Imre Nagy (first appearance); Psycho (film) (2nd appearance, last in 2010; rescued from Ineligible)
Repeats: Pope Pius IX (2nd consecutive appearance, 6 total)
Included: Yazdegerd III (first appearance); Pope Pius IX (7th appearance, last in 2012; rescued from Ineligible); Imre Nagy (2nd appearance, last in 2012)
I was trying to remember why June 16 rang a bell, but it was only after giving up on WP that Bloomsday finally came to me. This is (or used to be pre-sequester) a big deal in bookstore towns like Berkeley. Sparafucil (talk) 21:02, 16 June 2021 (UTC)[reply]
@Sparafucil: It depends. The point of the rules are to make sure we are featuring articles of good quality, so if you're trying to game the system by saying "Oh there are no more yellow-level tags on it" then that's not gonna fly (the rules do state that a large number of ((fact)) tags relative to article length can also disqualify it). But if you can source some of that content and leave ((fact)) for where you can't, then that might be good enough, especially if the things that need citations aren't really that important anyway (in which case, why not just delete them). Hope that helps. —howcheng {chat}06:37, 20 June 2021 (UTC)[reply]
1407 – Ming Chinese forces captured Hồ Quý Ly and his sons, conquering Đại Ngu and ending the Vietnamese Hồ dynasty. At first I had difficulties understanding what this actually means. It didn't help that initially, I thought that "Hồ Quý Ly" was a city. But once identified as a person (i.e. the father of said sons), the next confusing thing is that the tense swaps at the comma. I'm not a native English speaker; maybe somebody with a stronger command of the language than me could take a look whether this should say "conquered" and "ended" instead. Schwede6603:58, 7 June 2022 (UTC)[reply]
@Schwede66: I rewrote this to say "Ming Chinese forces conquered Đại Ngu, capturing Hồ Quý Ly and his sons in the process, and ending the Vietnamese Hồ dynasty", which I think should be clearer. The tense change in the second part of the sentence is pretty standard in English: it indicates that those things happened as a result of the first part. —howcheng {chat}16:36, 14 June 2022 (UTC)[reply]