Apparently you didn't notice that I linked modern inventions by Black people; so he doesn't even know shyt about recent history, because only a gigantic dumb ass wouldn't be aware of the ridiculous number of things that Black people have invented. Any fool could have looked up the fact that Black people invented everything from the damn elevator; to gas masks worn by firefighters and soldiers; to the traffic light; to refrigerated trucks; to a thousand things with the peanut; to open heart surgery; to blood transfusions.
Black people have a shyt load of inventions; in fact a black man improved the design of toilet so that people could shyt indoors
Lewis Howard Latimer - Wikipedia