Marvel & 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
Amazing Spider-Man #2
First appearance of the Vulture, one of Spider-Man’s earliest recurring enemies.
View key issue guide
Major Key
Amazing Spider-Man #3
First appearance of Doctor Octopus, establishing one of Spider-Man’s defining villains.
View key issue guide
Major Key
Fantastic Four #12
First meeting and battle between the Fantastic Four and the Hulk.
View key issue guide
Major Key
Tales of Suspense #39
First appearance and origin of Tony Stark/Iron Man.
View key issue guide
Major Key
Amazing Spider-Man #31
First appearances of Gwen Stacy and Harry Osborn.
View key issue guide