A clearer path throughan expanding universe.

There is no single definitive source for the MCU timeline. After Avengers: Endgame, establishing a precise chronology became increasingly difficult as Marvel introduced more interconnected stories, the multiverse, alternate universes, and events outside the main timeline.

Compare several timeline sources and you will likely find small differences. Stories may contain conflicting dates or leave gaps that require interpretation. That does not necessarily make one source wrong, nor does it diminish the viewing experience. Many stories never directly reference one another, so a little variation is reasonable.