Timelines A, B: 8,000-3,600 BC
En Sabah Nur, also known as Apocalypse, the firstborn mutant, manifests his mutant ability and ascends as a dominant power in ancient Egypt. During a ritual in 3,600 BC to extend his life by transferring his consciousness into the body of a man with an advanced mutant healing factor, Apocalypse and his four chief lieutenants, his Horsemen, are betrayed. Apocalypse is entombed alive, and kept secret for millennia. (X-Men: Apocalypse)
