User:Nil Einne/SAOTD

Why isn't item X on SA-OTD when it's more 'important' then everything else?
First, 'importance' is only one of the criteria for chooise items to appear on Selected anniversaries on this day. Check out Selected anniversaries for more. Remember that there's no objective definition of 'importance', other editors may disagree with your assessment of 'importance' and repeating what was said earlier for emphasis, 'importance' is only one of the criterias.

However when this issue arises and one item genuinely seems a lot more 'important' then the rest, 'important' enough that it should always be mentioned, the most likely reason for this is that the item is already discussed in the Today's Featured Article or Today's Featured Picture section. To mantain variety, items are generally not repeated in multiple sections, no matter how 'important' they are.

Another possibility is that the article discussing the event is not of sufficient standard to be on the main page. While we don't expect articles to be of featured article standard, they should be stubs either. They should also not have any cleanup tags and should at least mention the date in the article and explain why the event is important. Think about it as a unknown reader, would you want to learn about an 'important' event only to click on the link to learn more and find the article is a stub or a mess and doesn't even mention the date and explain why it's important? If you cleanup the article and fix any major issues (this doesn't mean removing legitimate tags without fixing the issue) then it may be used in future years. Remember however that even if the article is good enough for the main page, if other articles are sufficiently better they may be chosen instead. See also

On that note, the other possibility is simply that no one editing the template for that day knows of that the event. Remember you are free to add items before the page is protected. If you know of an important event coming up, you are welcome to add it following the guidelines specified. If you follow the guidelines, the article is good enough and there isn't a lot of competition from other events, there's a good chance other editors will agree with your decision and leave it there. Alternatively it may be hidden for this year but could be considered for future years. Either way it's more likely to appear then if you just complain in random places.