The headline finding of the NUE001 study — the 20 percent Fertile Crescent ancestry — is easy to misinterpret in both directions.

One misinterpretation would be to see it as proof that Egyptian civilization was founded or civilized by outsiders.

This is wrong.

Egypt was built by Egyptians — people whose primary genetic heritage, as NUE001’s genome shows, was North African.

The Fertile Crescent ancestry is a 20 percent minority component that reflects the kind of population mixing that characterized every ancient civilization in the region.

No ancient civilization was genetically pure or isolated; all of them were the product of mixing, movement, and exchange.