In this video, John Green teaches you about World War II, a subject so big, it takes up two episodes. John will teach you how the United States got into the war, and just how involved America was before Congress actually declared war. John will actually talk a little about the military tactics involved, and he’ll get into some of the weaponry involved, specifically the huge amount of aerial bombing that characterized the war, and the atomic bombs that ended the war in the Pacific.

In this second video, John Green teaches you about World War II as it was experience on the home front. You’ll learn about how the war changed the country as a whole, and changed how Americans thought about their country. John talks about government control of war production, and how the war probably helped to end the Great Depression. A broader implementation of the income tax, the growth of large corporations, and the development of the West Coast as a manufacturing center were also results of the war. The war positively changed the roles of women and African Americans, but it was pretty terrible for the Japanese Americans who were interred in camps. In short, World War II changed America’s role in the world, changed American life at home, and eventually spawned the History Channel.