X-Men Cinematic Universe - Timeline (Revised & Original)

[Regsta]

Only problem with this is that he clearly isn’t 12

I know, he doesn't look like 12, but this the way to use his birth year in Apocalypse and Origins taking place in 1979, as officially is. I know your "Shaw Theory" fix this, but my explanation is without the theory. We have a lot of movies that adult actors play teenagers, could be the case.