Trivia / Age of Apocalypse

• Flip-Flop of God: Readers were told that although changing the past usually produces an alternate universe that exists in addition to, but doesn't replace, the main one, Legion's great power enabled him to break this rule and change actual Marvel history. Nevertheless, the Age of Apocalypse universe was later treated as a normal alternate universe. It was explained that the real reason for the main Marvel Universe being destroyed (temporarily) is the M'Kraan Crystal being breached; since there is a single M'Kraan Crystal that exists simultaneously in all realities, breaching it in one reality creates a cascade effect that will wipe out the entire multiverse. When this was averted, things went back to normal.
• The Merch: Toy Biz's X-Men toyline has seen some figures based on the storyline, including a whole subseries based on the story.

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