Why did they not move to the best region in africa or europe? Why would any sane man decide to settle in the middle of the desert? Where drought and famines a problem of the past or did all our rivers dry up?. I am just trying to make sense of all of this and have not reached any logical conclusion as to why our ancestors chose to live in that difficult terrain. I would rather go all gengis khan and die fighting for better land than to settle for less. Some say we once inhabited the northern regions of africa until the bantu expansion, but i don't whole heartedly believe their claims. How did the expansion of mankind happen and how did they decide which would get the best land?