Answer: Industrialization, urbanization, immigration, and political corruption.
Step-by-step explanation:
The progressive era represents a period of progress in the history of the United States. The then government's main goals were industrialization, which with its appearance led to urbanization because the focus of everyday life shifted from the countryside to the cities. The government has also sought to address certain immigration issues. Apart from the above, the progressive era also represents a period of dealing with corruption, primarily in state institutions. Most historians believe that the Progressive Era was a period that lasted from 1890 to 1920.