This special AP Test review episode of APUSH for ALL explores the transformative period from 1865 to 1919, highlighting industrial capitalism during the Gilded Age, Progressive Era reforms, U.S. imperial expansion, and World War I. The hosts examine the rise of monopolists like Carnegie and Rockefeller, labor struggles, muckraking journalism, and reform efforts led by figures like Roosevelt, Wilson, and Jane Addams. The U.S. emerges as a global power through the Spanish-American War and WWI, though racial inequality and anti-imperialist resistance persisted. The episode encourages listeners to analyze causes and consequences of reform, imperialism, and America’s growing international role.