Civil War influenced the beginning of American Realism by giving emphasis on progress and evolution of man. Commonplace citizens enjoyed unbiased way of living and benefited from business ventures. Even authors tend to focus their literary pieces on the realities beneath the post-war experiences. Leaders became more aware of the economic status of the country and encourage them to manage men and machine wisely. Boosting uses of natural resources for business opportunities, improvement on rail way system, and operation of transcontinental telegraph to access a wide range of markets and enhance communication are some of the progress which changed the image of America. This resulted to influx of immigrants that provided inexpensive labor.