The A to Z of the Progressive Era

The Progressive Era, the period in the United States between 1898 and 1917, was a time of great social, political, and industrial change. Following the Spanish-American War of 1898, an event that signaled the emergence of the United States as a great power, the country soon was involved in its first overseas guerrilla war, in the Philippines. Vast changes in communications and transportation, immigration and migration patterns, social mores, gender roles, family structure, class structure, ...