Stalin's Great Terror took place in the 1930s, with its most bloodthirsty peak in 1937. Two years later, Nazi Germany would invade Poland and the Second World War would begin.  But before the storm of war, there was a most remarkable peace treaty. You can listen to our sister podcast, Physical Attraction, at www.physicspodcast.com where you'll also be able to donate to the show; you can listen to all back episodes at www.autocracynow.libsyn.com or where-ever you listen to podcasts.