by David Tollen | Sep 10, 2021 | The Neolithic & Latter-Day Prehistory, Earliest Civilizations in Eurasia
We all know Homo sapiens evolved in Africa and then spread across the rest of the world. But scientists have demonstrated that, starting around 5000 B.C.E., an astoundingly large group came back. This “backflow” brought so many people from Eurasia that...
