Early on, the roles that Blacks portrayed in any form of media was the "mammy" "uncle tom" "buck" "wench/jezebel" "mulatto" or "pickaninny" Sometimes, most times, blacks weren't even cast by blacks. They had whites in blackface portray Blacks on stage. http://black-face.com/
This image depicts a black caricature, or an an image that paints African Americans as strange. The video below is a satire animated cartoon on the history of gun violence and racism in the United States, from Michael Moore’s documentary “Bowling For Columbine.” http://www.youtube.com/watch?v=jJyKTilOQXA&list=FLv1sloFwrjDa1Zly2eDiRVw
Don't get what's wrong with blackface? Here's why it's so offensive. - Its American origins can be traced to minstrel shows. In the mid to late nineteenth century, white actors would routinely use black grease paint on their faces when depicting plantation slaves and free blacks on stage.
Part two (the olio) was the variety section and a precursor to vaudeville. It included singers, dancers, comedians, and other novelty acts, and parodies of legitimate theater. A preposterous stump speech served as the highlight of this second act, during which a performer spoke in outrageous malapropisms as he lectured. His demeanor was reminiscent of the hilarious pomposity of Zip Coon; he aspired to great wisdom and intelligence, but his hilarious mangling of language always made him…