How long does it take to build an aqueduct?

Related questions

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4. How did the Romans clean their polluted water?
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6. Are aqueducts still used?
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10. What is the purpose of a Aqueduct?

Tags

1. #capital
2. #years
3. #elaborate
4. #built
5. #period
6. #roman
7. #engineering
8. #bring
9. #served
10. #empire
11. #major
12. #achievement
13. #water
14. #system
15. #miles
16. #remains
17. #aqueducts