Petteri Pietikäinen, the PI, is Professor of the History of Science and Ideas at the University of Oulu. His research interests include history of psychology, psychiatry and medicine; history of evolutionary research and Darwinism; history of Utopian thought; and relations between science and politics. He has written five books, edited three books and published ca. 70 articles (his Madness: A History, will be published by Routledge in June 2015). In his work, Pietikäinen combines the methodological and theoretical approaches of both intellectual history and history of science, which is also the starting point of the present research project on Westermarck and his circle.