What was the main cause that the southern states broke away from the united states?

Capitalism competed with dominance in the twentieth century communism merchantilism free enterprise feudalism

What was the effect of the industrial revolution on the working class?

17 million negroes cannot do as you suggest qnd wait for the hearts of men to change. tjis we cannot do unless we persue aggressively goals which all other americans achieved ove 150 years ago. how might martin luther king jr. respond to this statement?