Who was the first established mainstream hero type comic book character that either DC or Marvel killed off and left that way? - Science Fiction & Fantasy Stack Exchange
Which Marvel character were you first introduced to and what did you like about them? : r/Marvel
First edition of superhero comic book featuring the character called Nova, produced by Marvel Comics Stock Photo - Alamy
Who was the first Marvel comic book Hero? Explained
Who was the first Marvel comic book Hero? Explained
Bangkok Post - Rare copy of first Marvel comic sells for B80.7m
Robert Baldwin (Earth-616) | Marvel Database | Fandom
A BRIEF HISTORY OF THE MARVEL UNIVERSE
Marvel Comics | Marvel Super-Heroes issue #18, with first appearance of the Guardians of the Galaxy, CGC graded 5.5 (1969) | Artsy
Black Panther, Vol. 1 No. 4 | Smithsonian Institution
The First Silver Age Marvel Super Hero – The Tom Brevoort Experience
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Who was Marvel's first superhero character, and how has that character evolved throughout the company's history? - Quora
Marvel Comics - Wikipedia
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Who Really Created the Marvel Universe? | The New Yorker
Marvel Comic Character: Who Was Marvel's First Superhero?
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Marvel's First 10 Superhero Comic Book Series, In Chronological Order
Marvel's First 10 Superhero Comic Book Series, In Chronological Order
Look Inside the First Marvel Comic Ever | Marvel
The First Silver Age Marvel Super Hero – The Tom Brevoort Experience
Higher, further, faster: Marvel's first female cinematic superhero
