I found this article at LiveScience, about the results of analyzing the oldest African DNA successfully sequenced to date, very interesting:
Burials from a cave in Morocco have yielded the oldest human DNA evidence yet from Africa, offering new insight into Stone Age migrations.
The DNA samples come from one of the most ancient cemeteries in the world, the Grotte des Pigeons, near the village of Taforalt in northeast Morocco.
Beginning around 15,000 years ago, a culture of hunter-gatherers buried their dead with animal horns and other adornments inside this cave. Though burials were found as recently as 2006, archaeologists have been excavating the cave since the 1940s.
Spoiler alert. 15,000 years ago North Africans were very much as they are now—more similar to people from the Middle East than they are to modern Europeans or sub-Saharan Africans. That’s completely consistent with my views of late prehistory. People spread to most corners of the world a long, long time ago and populations have been established for millennia.
There are exceptions, of course, like the European colonization of the Americas that began in the late 15th century or the migration of South Africa by people whose origins were in the vicinity of Nigeria to Central and finally South Africa beginning in the 12th century. But those are exceptions.
