Why is FMA and FMAB so different?

Related questions

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6. Is Tokyo Ghoul over?
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Tags

1. #develop
2. #first
3. #following
4. #people
5. #invented
6. #starts
7. #anime
8. #while
9. #different
10. #series
11. #whole
12. #original
13. #being
14. #manga
15. #aired
16. #start
17. #thing
18. #because