The Progressive Era in the United States occurred between the 1890s and the 1920s, and was a period of social activism and political reform. The Progressive Movement focused on purification of the government by exposing political corruption. Progressives also strongly supported the idea of efficiency in every sector by emphasizing scientific and medical solutions to old problems. During the Progressive Era many movements were led to reform the government, education, medicine, railroads, and industry. Progressives mainly drew support from middle class Americans.