Blacks excel at sports and the entertainment world because they are allowed to do so. These are areas that they know they can succeed if they work hard. Your rather childish belief that it has to do with "physical differences" is nonsense. As for your idea that "world history" teaches they are inferior, might I remind you that the same thing could teach that whites are bloodthirsty, raging maniacs - aka, Hitler, Stalin, etc. etc. You should actually read a book before you open your mouth.