Ancient farms had very different origins TPT

FTA:

Dramatic new hypothesis could change the way we understand human history.

... people began altering their environments for food and shelter about 30,000 years earlier than we thought

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There is also evidence that, as soon as humans reached South America, they took up residence in the Amazon and began farming. Often these ancient farms evolved into highly-developed networks of cities like those of the Maya.

...

Check out both links.