What time period is generally associated with the Progressive Era?

The Progressive Era is generally recognized as occurring from the 1890s to the end of World War I in 1918. This period was characterized by a widespread social activism and political reform across the United States aimed at addressing issues caused by industrialization, urbanization, and corruption in government.

During this time, various movements emerged, advocating for changes such as women's suffrage, labor rights, antitrust laws, and improvements in public health and education. The era also saw the rise of progressive leaders and reformers who sought to make government more responsive to the needs of the people. The culmination of these reforms often aligned with the increased awareness and mobilization of citizens in response to societal issues, thereby firmly establishing the time frame of the Progressive Era within these decades.

The other time periods listed do not encompass the key events, reforms, and social changes associated with the Progressive movement, making this specific range the most accurate representation of the Progressive Era.