Changes

*The [[founder]] of a wiki probably knows its age.;

**Go to the 'Oldest pages' at <code>/Special:AncientPages</code> for the wiki and look at the date of the first article (note that it lists pages that haven't been ''edited'' in a long time, not the oldest pages overall).;**Go check the date for 'MediaWiki default' at <code>/Special:Contributions/MediaWiki_default</code> made its first contribution.;**View history for a system message (as found in the 'MediaWiki' [[WikiIndex:Namespace conventions|namespace]] – search in [[Special:PrefixIndex]]), and check when MediaWiki default first edited it.;*For [[:Category:Wikia|Wikia]] wikis, the exact date of founding will used to be available at <code>/Special:WikiStats</code>.– this [[:Category:Wiki syntax|feature]] is now defunct, so follow the above MediaWiki advice;