The aim of the series is to make the knowledge and cultural history of the "Bibliotheca Amploniana" accessible to a wider public. In his lecture, Sven-Philipp Brandt will give a detailed insight into the work of scholarly in-depth indexing of medieval codices. He will take the guests on an exploratory tour through a selected medieval manuscript volume of the Amploniana and reconstruct the "life story" of the volume on the basis of various clues, which is like a journey through the European Middle Ages of the 14th and 15th centuries.