The Progressive Era was characterized by

The Progressive Era

Explanation:

The Progresive Era was a period of widespread social activism and political reform across the U.S. This happened from the 1890s to 1920s. The main objective of the Progressive movement was to eliminate corruption in the government. The movement also primarily targeted political machines and their bosses.

well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns