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20-10-2020
Social Studies

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5. How did the Sumerians keep time?
A. They used an abacus to count the days and nights.
B. They invented a calendar based on the moon and stars.
C. They improved the function of sundials.
D. They formulated the first mathematical equations to determine the hours in a day.

5 How did the Sumerians keep time A They used an abacus to count the days and nights B They invented a calendar based on the moon and stars C They improved the class=

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kascott kascott

20-10-2020

Answer:

c

Explanation:

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