What lessons does the progressive era offer about social problems in the united states today?

There are numerous lessons that the Progressive Era can offer about the United States and their social problems in 2017. Some of the lessons are; to educate women and minorities, to have a fair government, to have minimum wage, and they don't need to push all immigrant groups to be Americanized. Another thing that could help the social problems today is to still create fair and safe working conditions at every work site.

Primary sources are usually  more accurate and are written by someone who experienced it or witnessed it. secondary sources are those who heard of it after the fact that can lose details and or twist the event in a light that benefits them.