Board Thread:Support Requests - Getting Technical/@comment-9605025-20160920233547/@comment-24473195-20160921215940

There is a limit hardcoded into recent changes, and you can only go so far back. I suspect Wikia uses the same limit as mediawiki, probably 30 days. You can use the revisions api, but this would take considerable time on a wiki with heavy traffic.

The fastest way to do what you want is probably to download the whole dump for the wiki, and use some tools to parse it such as:

https://pythonhosted.org/mediawiki-utilities/core/xml_dump.html

This does require some programming knowledge though.