Wikipedia:Tip of the day/February 19
Subpages are pages that are separated with a "/" from their parent page, for example, User:Eloquence/Favorite Wikipedia quotes. When you visit a subpage, you will see a backlink (aka breadcrumb) near the top of the page back to the parent page. Subpages can be useful for organizing and archiving content, and for creating workspace under an user account. You can create a subpage by typing [[/Name]] on the page in question. If you end the link with a slash, e.g., [[/Name/]], the slashes are hidden in the output.
Subpages are not enabled in the article namespace, because many articles might qualify as subpages of more than one page. Instead, follow article naming conventions and include links to related subjects in the text.