The November Pogrom of 1938, the Night of Broken Glass, was one of the decisive moments of the history of the Third Reich. For the first time, tens of thousands of ordinary people, if not more, participated in a ritual of violence and degradation directed against their Jewish neighbors. In more than a thousand communities, synagogues were burned down, destroyed, and desecrated. Historians know a great deal about the event. They know less about how this event became part of collective memory in the postwar years. Using method from digital humanities, this talk will address the question of when and how Germans in the Federal Republic thought about and memorialized a central event that had shown Nazi Germany to be a persecuting society.