This podcast episode explores the belief in the end of the world throughout history, focusing on medieval Europe and the First Crusade. It delves into the complex and often misunderstood history of the Crusades, highlighting their impact and relevance in contemporary geopolitical discussions. The episode also discusses the diplomatic relationships between Muslims and Christians, the motivations of Pope Urban II for declaring the First Crusade, and the role of knights and the Peace and Truce of God in the lead-up to the Crusade. Overall, the episode provides a nuanced and comprehensive understanding of the historical context and significance of the Crusades.