What does black mean in a flag?

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2. Who started apartheid in South Africa?
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4. What do South Africans speak?
5. Is it disrespectful to wear the flag?
6. What is the main religion in South Africa?
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8. How does the African flag look?
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Tags

1. #colors
2. #vigilance
3. #values
4. #patriotism
5. #represent
6. #prosperity
7. #defeating
8. #heritage
9. #represents
10. #other
11. #country
12. #ethnic
13. #often
14. #perseverance
15. #entity
16. #determination
17. #enemies
18. #peace
19. #freedom
20. #justice
21. #black