The usual story.
Homo sapiens tribes migrate from Africa, and they drestroyed other human species, as Homo erectus, denisovans, neanderthal, red deer humans and homo florensis.
What if a creative tribe enslaving them. For example.
They can teach of Asian homo erectus populations or neanderthal to bear burdens or tool-making.
Ideas?
How could have been done so that the Neolithic Revolution?