Ditlev Tamm has been a Professor of History of Law and Comparative Law at the University of Copenhagen (Denmark) since 1978. He is the author of several books and articles on a wide range of legal and historical subjects, from Danish and European legal history and comparative law, to Danish post-war trials for collaborators, on Danish politics, business: Chinese spring rolls, Adidas in Denmark, and Danfoss, and cultural subjects as the origin of Danish ballet, Jorge Luis Borges and beer. He is a member of the Royal Danish Academy of Science and Letters.