Comics Chronology: Earth-1610 goes through a major shake-up that leaves the survivors Spider-Man, the Ultimates and the X-Men notably changed!
Endgame (1969) Reading Order
Related Events: The Avengers are pulled into a war through time when Kang competes with the Grandmaster!
March on Ultimatum (2006-2008) Reading Order
Related Events / Crossover: Magneto takes on the Ultimates and the origins of the Ultimate Universe are revealed!