Death of Hans Kelsen in Berkeley, California at age 91 (born in Prague, Austria-Hungary 1881); jurist, developed the “pure theory” of law, professor in Vienna, Cologne, Geneva and Prague, judge on the Austrian Constitutional Court (1920-30), taught at Harvard and University of California at Berkeley, author (Hauptprobleme der Staatsrechtslehre 1911, Allgemeine Staatslehre 1925, Reine Rechtslehre 1934, The Law of the United Nations 1950, Was ist Gerechtigkeit 1953).