This is amaintenancecategory, used formaintenance of the Wikipedia project. It is not part of the encyclopedia and containsnon-article pages, or groups articles by status rather than subject. Do not include this category in content categories (except foreponymous maintenance categories).

This is ahidden category. It is not shown on its member pages, unless the correspondinguser preference (Appearance → Show hidden categories) is set.

This is a tracking category for allset index articles.Pages are put in this category by templates such as{{SIA}},{{mountainindex}} and{{shipindex}}. That is, templates built with the{{dmbox}} meta-template, which does the actual categorization.Note that since 2017^[update],{{given name}},{{surname}}, and{{nickname}} have also put pages in this category even though such articles resemble disambiguation pages.(See thediscussion that brought this about.)Also seeCategory:All disambiguation pages andCategory:All article disambiguation pages for the corresponding lists for disambiguation pages.

• Set index articles

• Hidden categories
• Noindexed pages
• Template Large category TOC via Automatic category TOC on category with over 20,000 pages
• Automatic category TOC generates Large category TOC