Topic summary
Indigenous Peoples of North America
Extracted from the Wikipedia article Indigenous peoples of the Americas.
Plants
Indigenous peoples of North America began practicing farming approximately 4,000 years ago, late in the Archaic period of North American cultures. Technology had advanced to the point where pottery had started to become common and the small-scale felling of trees had become feasible. Concurrently, the Archaic Indigenous peoples began using fire in a controlled manner. They carried out the intentional burning of vegetation to mimic the effects of natural fires that tended to clear forest understories. It made travel easier and facilitated the growth of herbs and berry-producing plants, which were important both for food and for medicines.