In which John Green looks at Europe's attempts to recover from the devastation of World War I and forge a lasting peace. The peace did not last. Today we're talking about the economic cultural recovery of the 1920s, and the economic depression of the 1930s, and the fragile state of Europe after the Great War. We'll also look at the rise of fascism via the auspices of populist leaders like Adolf Hitler and Benito Mussolini, and we'll set the stage for the war to come.