Why do they call it the Red Square?

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Tags

1. #began
2. #beautiful
3. #krasnyi
4. #krasnaya
5. #ploschad
6. #century
7. #square
8. #russians
9. #later
10. #russian
11. #calling
12. #which
13. #meant
14. #onward
15. #however
16. #derived
17. #current