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This category is used for administration of the Wikipedia project, and is not part of the encyclopedia. It contains pages that are not articles, or groups articles by status rather than content.

This category is not shown on its member pages.

Articles in category contain statements that may become dated originating from before 1990. The statements may need to be updated, removed or edited for perspective. Articles containing older statements are more likely to be dated. This is not a backlog; not all articles included in this category will need updating at this point in time.

Use {{As of}} to mark all individual statements that may become dated, this will automatically add them to the appropriate categories. Wherever possible, use {{Update after}} to mark exactly when statements will need updating in addition to using {{As of}}.

See also

• Wikipedia:As of for details of dealing with statements that date quickly.
• Wikipedia:Avoid statements that will date quickly for guidelines on using precise language when dealing with information that may date quickly.
• Category:Wikipedia articles in need of updating and the accompanying {{Update after}} template.
• Category:1911 Britannica articles needing updates