Trying to confine them to reservations, large amount of native resistance. Romantic vision of the frontier: success stories, cowboys, etc: capitalism. Development would have been hindered without railways. Creation of immigrant identity, americans trying to assimilate them into their identity. Trying to reform society, redress grievances people are having. Racial discrimination used to reinforce the barriers of social class. Class divisions most visible in the cities. Development of inner-city slums; more extreme than before and a way of life developing around them. Creation of suburban areas to move away from large population of lower class people.