I think they did. They claim the ancient Egyptians as their ancestors. The white devils stole all their technology.
“White folks was [sic] in caves while we were building empires... We taught philosophy and astrology and mathematics before Socrates and those Greek homos ever got around to it.” — Al Sharpton, Kean College, 1994
The Egypt-was-Black boneheads have gone so far as to claim that the Greek stole everything they ever knew from the library of Alexandria — which is weird, because the Greeks/Macedonians BUILT Alexandria, and the Ship’s Library (a.k.a. the Great Library).