Emerged in southern and east Africa around 3 - 4 million years ago.
At this time Sapiens Sapiens is thought to have begun the move out of Africa @ 72,000 BCE
2. Homo erectus
Lower Paleolithic 300,000-70,000 BC Old Stone Age
Middle Paleolithic 70,000-12,000 BC
Upper Paleolithic 35,000-12,000 BC
Mesolithic 12,000-10,000 BC Middle Stone Age
Africa -> Middle East (100,000 years ago) -> SE Asia and India (70,000 years ago) -> China (67,000 years ago) ->Australia and Oceania (50,000 years ago) -> Europe, Central Asia, and Siberia (40,000 years ago)
- Still unknown. Some believe they crossed the Bering land bridge 15,000 years ago.