Why does Egypt speak Arabic?

Related questions

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2. Is Egypt the longest lasting civilization?
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4. Where is Sudanese spoken?
5. Why did the capital of Egypt change?
6. What is the meaning of the name Cairo?
7. What does the eagle in the Egyptian flag represent?
8. What is hello in ancient Egyptian?
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Tags

1. #period
2. #until
3. #lower
4. #either
5. #coptic
6. #egypt
7. #seventh
8. #spoken
9. #conquest
10. #koine
11. #written
12. #greek
13. #centuries
14. #three
15. #arabic
16. #bilingualism
17. #language
18. #following
19. #muslim
20. #slowly
21. #egyptians
22. #adopted
23. #lasted
24. #egyptian
25. #history
26. #century