Introduction
The population of the United States had almost doubled from 1870 to 1900 as immigrants came to U.S. cities to work in the country’s burgeoning factories. As the United States became increasingly urban and industrial, it acquired many of the attributes common to industrial nations—overcrowded cities, poor working conditions, great economic disparity, and the political dominance of big business. At the turn of the twentieth century, Americans had begun to look for ways to address some of these problems.
(Source: The Miller Center)