What does the black flag represent?

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Tags

1. #opposite
2. #neither
3. #quarter
4. #black
5. #symbolizing
6. #accept
7. #civil
8. #symbolize
9. #units
10. #symbol
11. #would
12. #confederate
13. #flown
14. #irregular
15. #white
16. #american
17. #surrender
18. #since
19. #anarchist
20. #1880s
21. #certain