Originally Posted by
gambit2051
The Schism between Xavier and Magneto she mentions in 10 is the same one that they always talk about. What this says is that all the X-Men Comics happened in a roughly 3-4 year span, including take your pick on which Genosha massacre, but odds are it is the Morrison one being referred to.
That kind of time compression lends credit to the idea that some stories MIGHT have taken place elsewhere, but any X-Men story WITHOUT Moira automatically means it is in Timeline 2 or 10. She dies so early in Timeline 2, that any story WITHOUT her could have theoretically occurred there. And in Timeline 4 she was married to xavier the entire time until they are both killed by Sentinals, so only stories WITH her could have taken place here and only those where she never founded the Muir Island Institute since she only did that in Timeline 10.