Major Key
The Saga of the Swamp Thing #37
First full appearance of John Constantine.
View key issue guideMarvel & DC Key Comic Issues
Explore 279 collector guides covering major and minor Marvel & DC comic milestones.
Major Key Comic Issues
Browse major milestones, debuts and defining comic-book keys.
279 major key issues
Major Key
Man of Steel #1
Beginning of John Byrne’s post-Crisis retelling of Superman’s origin.
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Major Key
Captain America #333
Steve Rogers resigns as Captain America after refusing government control of the identity.
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Major Key
Justice League #1 (1987)
Beginning of the influential post-Crisis Justice League era.
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Major Key
Wonder Woman #1 (1987)
George Pérez's influential post-Crisis relaunch and origin.
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Major Key
Wonder Woman #7 (1987)
First post-Crisis appearance of Cheetah as Barbara Ann Minerva.
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Major Key
Wonder Woman #8 (1987)
Expands Barbara Minerva’s transformation into the post-Crisis Cheetah.
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Major Key
Amazing Spider-Man #299
Cameo leading directly into Venom's full debut.
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Major Key
Batman #428
Conclusion of A Death in the Family, a defining turning point for Batman and Jason Todd.
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Major Key
Batman: The Killing Joke
Pivotal Barbara Gordon story that changes her status for years.
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Major Key
Incredible Hulk #340
Celebrated Hulk versus Wolverine battle with an iconic Todd McFarlane cover.
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