High Quality Content by WIKIPEDIA articles! The Progressive Era in the United States was a period of reform which lasted from the 1890s to the 1920s. Responding to the changes brought about by industrialization, the Progressives advocated a wide range of economic, political, social, and moral reforms. Initially the movement was successful at local levels, and then it progressed to state and gradually national. Both the reformers and their opponents were predominantly members of the middle class, and the movement was heavily financed and prometed by JPMorgan and the Rockefeller family.