ABSTRACT
In 1922, the physicist and philosopher Moritz Schlick was appointed professor of the philosophy of inductive science at the University of Vienna. Three years later he organized a Thursday evening discussion group of philosophically-minded mathematicians and scientists. Though its membership varied over time, the group met regularly for the next eleven years, and through the efforts of its members a new philosophy was born. The philosophy became known as logical positivism and the group took for itself the label, the Vienna Circle. Some of the more significant members over the years included Rudolf Carnap, Herbert Feigl, Phillip Frank, Kurt Gödel, Hans Hahn, Karl Menger (the economist’s son), Otto Neurath, and Friedrich Waismann.
