The timeline refers to the order of events as it occurs in the universe. Due to the timetravelling of the Wolverine, two universes have been created:

  • Original Timeline - The timeline in which minor timetravel occurs and it ends with the Wolverine going back in time to stop the rise of the Sentinels.
  • New Timeline - The time created when the Wolverine goes back to 1973 from the Original Timeline to try and stop the Sentinels.