Why are manga read right to left?

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Tags

1. #start
2. #japanese
3. #written
4. #tategaki
5. #system
6. #japan
7. #right
8. #publications
9. #called
10. #books
11. #manga
12. #traditionally
13. #natural
14. #traditional
15. #format
16. #language
17. #follow
18. #which
19. #chinese
20. #copies