This course tells the story of America’s tumultuous confrontation with the biggest challenges of the 20th century. During the half-century from the end of World War I to the end of the Vietnam War, Americans confronted a worldwide depression, the growth of New Deal statism, the menace of fascism and communism, and their own internal intellectual fractures. Throughout this period of wars and domestic conflict, American thinkers embraced purer and more consistent versions of the altruist and collectivist ideas their forebears had planted during the Progressive Era. How did these philosophic changes affect American life? How did Americans reconcile the surging prosperity of postwar America with an emerging radically anticapitalist strain of American thought? What led to American successes and failures in foreign policy? In these five lectures, the final part of his five-part series, Dr. Daniels will explain the major events and intellectual trends of American history from the 1920s to the end of the 1960s. The focus will be on illuminating the broad trends in our history.