What are four main concept in the progressive era?
1. Social justice and equality: Progressive reformers focused on addressing societal issues such as poverty, labor rights, and civil rights to create a more equitable and just society.
2. Political reform: Progressives sought to eliminate political corruption and promote transparency in government through policies such as direct primaries, initiative and referendum, and the direct election of senators.
3. Economic reform: Progressive era reformers aimed to curb the power of big business and promote fair competition through antitrust legislation, regulation of monopolies, and protections for consumers and workers.
4. Environmental conservation: Progressives advocated for the preservation of natural resources and the establishment of national parks and forest reserves to protect the environment for future generations.