It should be relocated at Theory:Timeline - Other universes because of unknown reasons. The editor who placed this tag here didn't enumerate them.
Talk about it here or check the revision history for additional comments.
This page lists the order of stories in the Doctor Who's Meta-fiction universe timeline, that is, any story that offers fictional accounts of the production of Doctor Who set explicitly in alternate universes. For the purpose of simplicity, all known meta-fictional universes shall be treated as if they are one and same. Stories that are about Doctor Who (N-Space) should not be entered here, as they are set in the Doctor's prime universe.