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How long ago was Cucurbita pepo cultivated in the region of present-day Mexico?

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A pile of freshly harvested pumpkins and gourds in various shapes, with striped patterns in shades of yellow, orange, and green. — Cucurbitales Pumpkins and gourds, order Cucurbitales.

Cucurbita pepo, which includes varieties such as summer squash, winter squash, zucchini, and common pumpkin, was cultivated as much as 10,000 years ago in the region of present-day Mexico.1