During which era did the sanxingdui culture exist? the neolithic age the zhou period the xia period the shang period

  The Shang period.

Explanation:

  It was the name of an archaeological site in China. The discovery of it challenged the narrative of the spread of Chinese culture. It was believed that the culture spread from the central planning of the Yellow River. It opened the door to a new conception about multiple centers of innovation that jointly helped to form the culture in China.

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worked constantly and gave many sincere speeches about the importance of independence