Originally Posted by blalex620
I'm not well versed on Apocalypse how does he connect to FF?
Via Kang the Conqueror; which might make the link a little tricky.
Apocalypse is an ancient being, and was originally born in ancient Egypt as En Sabah Nur. Kang the Conqueror went back to that time period and became the Pharaoh Rama-Tut, and in that guise, he tutored En Sabah Nur and empowered him to become Apocalypse. Rama-Tut originally appeared as a very early FF villain; the link to Kang was added for the Avengers' franchise sake a few years later.