In 19th century followed by the Civil War, the United States became the world's leading industrial power. Industrialization brought many impacts that changed American society. The major impact by industrialization in American society was urbanization, growth of big business and the raise of labor union, bringing positive and negative effect. Industries created many jobs that attracted urban lives; therefore, it increased percentage of Americans in urban areas. Industrialization reviled the idea of corporation, trust, pools, which made it possible for businesses, to raise more capital and encourage big businesses. Competition between big business resulted low salary and the spreading idea of socialism compelled workers to form unions.

Urbanization started when the industries needed a mass labor power for mass productions. Therefore, many industries searched for skilled and unskilled labors by offering jobs. These jobs were attracted to many people from rural areas. As a result many people from...