Let me start over.
X Men: Days of Future Past is an almost complete reboot of the laughably poor X-Men "continuity". By the end off this film, it is safe to assume that the events of X-Men, X2, X-Men: The Last Stand, X-Men Origins: Wolverine and The Wolverine simply never occurred, and that we have no knowledge of this universe from 1973 until 2023. This is known in comic books as a retcon, or Retroactive Continuity - bits of the film universe that they don't like have been written out, which funnily enough ends up being almost all of it.
