Answer:
The Progressive Era was a period of widespread social activism and political reform across the United States that spanned the 1890s to the 1920s. The main objectives of the Progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.
The Europeans brought many deadly diseases with them from Europe. The Native Americans did not have the antibodies to deal with these unknown sicknesses so most of their population died off.
Answer:
he was known for the first circumnavigation for the earth
