From outside mainspace: This is a redirect from a page outside the main-article namespace (mainspace) to an article in mainspace. This redirect page must be outside of mainspace.
The above rcat should only be used to categorize redirects that are outside the main namespace.
With history: This is a redirect from a page containing substantive page history. This page is kept as a redirect in order to preserve its former content and attributions. Please do not remove the tag that generates this text (unless the need to recreate content on this page has been demonstrated), nor delete this page.
This template should not be used for redirects having some edit history but no meaningful content in their previous versions, nor for redirects created as a result of a page merge (use {{R from merge}} instead), nor for redirects from a title that forms a historic part of Wikipedia (use {{R with old history}} instead).
When appropriate, protection levels are automatically sensed, described and categorized.