Paleolithic migrations; Population of the planet

According to archeologist and anthropologists the evolutionary line of descent leading to Homo Sapiens diverge from chimpanzees. They are the closest primate relatives, around 5 to 6 million years ago in easter and southern Africa. Hominid species began to change over time, their brains began to grow larger by the size of the skulls. For a long time Homo Sapiens lived in Africa but sometime after 100,000 years they began to migrate to Eurasian landmass. This is really interesting because this means that all are decedents come from Africa because that is were everything began. With the people living there they were able to have technological innovations. For example stone blades, and tools made out of bones. Interesting that historians have said that human numbers dropped 500,000 by 30,000 years ago and then to 6 million by 10,000 years ago.