Evidence for the earliest domestication in South America of root crops like manioc, yams, and arrowroot dates to:

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Evidence for the earliest domestication of root crops like manioc, yams, and arrowroot in South America dates back to approximately 7,000 years ago. This is based on archaeological evidence from sites such as the Kukuleta and the Candelaria caves in Peru, which contain remnants of charred root crops in association with stone tools and other artifacts.

Evidence for the Earliest Domestication in South America of Root