The development of a 365-day calendar shows that some early American civilizations understood which concept

asked May 25, 2018 233k views

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3 votes

They understood the concept of time.

I hope this helps! :3

Moinul answered May 27, 2018

7.1k points

2 votes

Answer:

Astronomy

isthe correct answer

Keith Flower answered May 30, 2018

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