Please tell me that’s sarcasm, they didn’t really try to say Africans invented math did they?
Africans couldn’t even domestic their animals they didn’t do anything but exist, were they trying to claim Mesopotamia was in Africa????
It's an exaggeration but common mythologies they push are that Africa sucks because "we stole all their resources", Europeans didn't bathe until the Moors taught them how, stuff like that.
Not to mention all the other cultures' accomplishments they always try to claim. Descendants of west africans living in the US are we wuzzing everything from Egypt to Beethoven.