Two interesting details are that the native peoples were socially organized and that they had a great deal of scientific knowledge.
Mann's research showed that pre-Columbian America was not populated by uncivilized peoples without any kind of knowledge, as the Europeans spread, but that they were socially and politically organized in structures that adapted to the culture and concepts of each people.
In addition, they had vast biological and geographic knowledge about the region they live, which allowed them to have very innovative technological advances for that time.
Learn more about Mann's research:
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