Template:Birth date and age/doc

This is a documentation subpage for Template:Birth date and age. It may contain usage information, categories and other content that is not part of the original template page.

Do NOT use this template when the exact date of birth is disputed or unknown; consider {{Birth year and age}} instead.

This template is used on approximately 748,000 pages, or roughly 1% of all pages. To avoid major disruption and server load, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them. Preview message: Transclusion count updated automatically (see documentation).

This template tracks the Wikidata property:

• date of birth (P569) (see uses)

This template uses Lua: Module:Age (sandbox) Module:Check for unknown parameters (sandbox)

Template:Birth date and age will return a living person's date of birth and age. Using this template rather than simply inserting the date into articles allows for the inclusion of hidden metadata about the date. This metadata can be used by web browsers and other software tools to extract the details, and display them using some other website or mapping tool, index, or search them.

This template is intended for use in an article about a living person. For an article about a dead person, use {{Birth date}} with {{Death date and age}}.

Is the displayed age incorrect? The age displayed was calculated when the page was last purged. If a particular article is showing the wrong age, edit the whole page and publish the edit without making any change and with no edit summary. That will update the age. The page can also be purged by appending &action=purge to the URL.