Numerous students from all over the world – among them personalities who were later to become famous – developed their intellectual foundations at the Friedrich-Wilhelms-Universität in Berlin during the first half of the 19th century. The "Matrikel" – the register of the members of what is now the Humboldt-Universität – provides unique insights into fascinating cultural-historical details of that period. The original wording of the entries for over 30,000 students reveals a wealth of biographical information: details of family background, previously visited universities and subjects studied, as well as information such as duels fought, involvement in criminal offences and military service, offer extensive possibilities for history of science and prosopographical analyses. eBookPlus offers the research possibilities of a database.The following search criteria are available:1. Full text2. Persons (name of the student / rector)3. Date (year of the rectorship / matriculation date)4. Field of studyAny combination of search options can be selected. The user can sort and select the results individually, print out the result lists, send them as e-mail or generate a PDF.