What evidence does mann provide to support the idea that indians in sixteenth-century new england lived in a dynamic world?

Charles C. Mann is among the most prominent America authors during the early parts of the 20th century wherein he was most famous for his work: Coming of Age in the Dawnland published in 1941. He presented his argument that the Native Americans lived in a dynamic world because they were already considered as civilised people, even before the Europeans came to the New World.

First person thats how the story is told by one of the characters