What made Superman a superhero?

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Tags

1. #birth
2. #comics
3. #given
4. #character
5. #number
6. #fictional
7. #shows
8. #appears
9. #superhero
10. #adapted
11. #books
12. #comic
13. #television
14. #published
15. #serials
16. #movies
17. #superman
18. #regularly
19. #planet
20. #radio
21. #krypton