User:SOTO/Forum Archive/The Reference Desk/@comment-188432-20130310185635/@comment-4028641-20130311190723
From Tardis Wiki, the free Doctor Who reference
Furthermore, there are multiple charactors on this world that are neither from the time the story is set or from that planet, including multiple charactors from the 1980s. It's entirely possible that the Tribe was also somehow moved.
