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The Progressive Era (20 mar 1897 año – 20 mar 1920 año)

Descripción:

The Progressive Era was a period of widespread social activism and political reform across the United States of America that spanned the 1890s to World War I. The main objectives of the Progressive movement were addressing problems caused by industrialization, urbanization, immigration, and political corruption.

Añadido al timeline:

fecha:

20 mar 1897 año
20 mar 1920 año
~ 23 years