find when a phrase was added to a Wikipedia page

• https://webapps.stackexchange.com/questions/35906/find-when-a-phrase-was-added-to-a-wikipedia-page
• WikIBlame
• https://www.mediawiki.org/wiki/Who_Wrote_That%3F

Which version control systems had that feature before?

• RCS: no – apparently it’s available as an extension
• CVS: “annotate”
• svn: yes
• git: yes