Michael Wiescher, the Frank M. Freimann Professor of Physics, presented the German edition of the biography he published on Arthur E. Haas at a symposium organized by the Erwin Schrödinger Institute (ESI) of the University of Vienna. Haas was an Austrian theoretical physicist of Jewish descent who came to University of Notre Dame in 1936 with the recommendation of Albert Einstein. Wiescher was the main speaker on the scientific, philosophical, and political development of Haas. Other speakers were Austrian historian and philosopher Friedrich Stadler from University of Vienna, who is also the founder and longtime director of the Institute Vienna Circle, and science historian and physicist Wolfgang Reiter from University of Vienna. Prior to this event, Wiescher was invited to give talks on Haas at the Leopoldina, the German Academy of Sciences in Halle, as well as at the Max Planck Institute for the History of Science in Berlin.