Why did Rome go from republic to empire?

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Tags

1. #first
2. #years
3. #chaos
4. #wrestle
5. #citizens
6. #world
7. #could
8. #empire
9. #itself
10. #ruled
11. #thousand
12. #senate
13. #power
14. #republic
15. #roman
16. #hands
17. #century
18. #elected