In German-speaking countries, the ‘science’ of law is primarily understood as a normative practice whose primary task is the production of practice-relevant legal doctrine. Since the beginning of the 20th century, however, there has also been a perspective that studies law empirically, i.e. how it is actually applied in society. In his research project, Christian Boulanger explores the history of the sociology of law in Germany and places it in a broader academic context.