He was correct at the time he wrote that. The majority of Africans were just savages, no signs of civilization ever found among them. That explain how the Egyptians where able to survive for 3000 years
Boy, are you going to be in for a
big surprise when you find out what continent Egypt is in.
Just in case you do not know: Egyptian civilization was a small part of the African continent and they were not even "black". In other words, the African people where ruled and slaved by another race while living in Egypt.
What race you think was Cleopatra, the last pharaoh?