The Czech Radio archives give us a rich and nuanced picture of the months leading up to the Munich Agreement of September 1938 that resulted in Nazi Germany annexing huge areas of Czechoslovakia. So many recordings survive that we can reconstruct the events leading up to Munich almost day by day. They include insights from many angles, not least the perspective of the German-speakers of Czechoslovakia, those who supported, but also those who opposed Hitler. The archives offer a sober warning of how easily a democratic state can be shattered through rumour, lies and propaganda.
You can find a transcript of the podcast at: https://www.radio.cz/en/section/special/czechs-and-germans-in-1930s-czechoslovakia-a-complex-picture