Do blacks make any contribution to mankind? Why do I feel that no matter how compared, black people can't catch up with yellow people and white people? No matter science and technology, economy or something Black people appeared earlier than white people, and white people appeared earlier than yellow people.

Really understand, and make some contributions. It seems that the hamburgers that many people like to eat were invented by blacks.

Coffee was also first grown in Africa.

Graffiti should also be a manifestation of black culture.

Young men and women nowadays don't know how much they like this street graffiti culture.

Black people are really rare in math and technology.