The document summarizes the Progressive Era in the United States from 1890 to 1920. It describes the roots of progressivism in rapid industrialization, immigration, and rejection of social Darwinism. Progressives were mainly middle and upper-class citizens who believed the government could enact reforms to address problems and continue social advancement. Their goals included trust-busting, increasing democracy, labor reforms, consumer protections, and social justice issues like civil rights and women's rights. Muckrakers like Upton Sinclair exposed issues through investigative journalism. Under Teddy Roosevelt, the federal government took a more active role in regulating industry and passing reforms like the Meat Inspection and Pure Food and Drug Acts.