We have learned that the ancient greeks made many advances in the arts and sciences. name and explain 2 advances that they made. why were these important?

The prediction of eclipses, by Thales of Myletus, which was based on knowledge acquired from Egyptians and Babylonians, and  the first alarm clock.

Explanation:

These discoveries were possible due to mathematics and astronomy knowledge learned from visiting these civilizations and experimenting on their methods, through deduction and practice.

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