Does John Green do crash course?

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Tags

1. #youtube
2. #notable
3. #crash
4. #initiative
5. #million
6. #their
7. #initial
8. #vlogbrothers
9. #educational
10. #channel
11. #started
12. #crashcourse
13. #stylized
14. #channels
15. #original
16. #green
17. #brothers
18. #course
19. #sometimes