That’s just preposterous. I can barely find information about my own ggg-grandfathers in England and Germany and those were advanced civilizations with extensive written civil and church records. In Africa, there was no written language and nothing but oral traditions and stories passed down.
And in Africa most of their time was spent scavaging for food and catching flies to eat off each other’s faces and other fly covered areas.
Remember when Barack went there the flies loved landing on that pile.
In most areas they still haven’t learned to feed themselves or purify water. Even after thousands of humanitarian missions.
Ask an African person about his or her family. You find everybody has 1,000 “sisters” — virtually every woman around the village is a “sister.” Makes genealogy a bit difficult.