This textbook covers the history of the United States from the end of the Civil War and Reconstruction (1865) through the modern era. It provides a chronological and thematic overview of political, social, economic, and cultural developments that shaped the nation. Content highlights: Reconstruction and the Gilded Age – rebuilding the South, industrialization, urbanization, and immigration; Progressivism and Reform – social movements, labor struggles, and government responses to rapid change; The U.S. in World Affairs – involvement in World War I, World War II, the Cold War, and post–Cold War foreign policy; The Great Depression and New Deal – economic crisis, reforms, and the reshaping of government’s role; Civil Rights and Social Change – movements for racial equality, women’s rights, and cultural transformations; Contemporary America – political developments, globalization, and challenges facing the U.S. in the 21st century.