History is a cac construct at this point
True, but from what I've seen we just didn't document or write sh*t down as much as they did, which allows them to revise the history because they have notes. Even the most known aspect of the story of Mansa Musa, came from an Arab perspective.
I'm not saying there weren't any black historians that documented things, but a lot of our history was passed down orally. Now we have to rely on current research and historians putting the pieces together.
Also, the "winners" get to write and re-write history. Once whites got control of most of the globe, they changed the narrative to fit their MO.
Edit: I'll add that maybe there were some ancient scripts by Africans that were destroyed, but again that goes with the "winners" getting to write the history.