The Progressive Era: A Reference Guide - Hardcoverby Francis J. Sicius (Author) This fascinating guide documents the transformation of government from passive observer to active participant and ally of the American people during the late 19th and early 20th centuries. The progressive impulse that energized the United States between 1890 and 1920 forever altered the nature of American government and its relation to its citizens. This book was written to reveal the challenges Americans faced during the