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jan 1, 400 BC - Detailed astronomical observations during the Warring States period by the Chinese.

Description:

They created their own Chinese Calendar, and the Chinese Zodiac based on the sun's trajectory.

Added to timeline:

Space

ByDarren GUAN
9 Dec 2019
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409

Date:

jan 1, 400 BC
Now
~ 2427 years ago
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