<span>Business and industrialization centered on the cities. The ever increasing number of factories created an intense need for labor, convincing people in rural areas to move to the city, and drawing immigrants from Europe to the United States. As a result, the United States transformed from an agrarian to an urban nation, and the demographics of the country shifted dramatically.
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Cities because they have more pay and job choices
It kept the church from gaining to much power and the govt from gaining too much power it went both ways to cause neutral power between the two.
Answer:
The 80's and 90's
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