The German Sociological Association (Deutsche Gesellschaft für Soziologie, DGS) is a professional organization of social scientists in Germany. Established in Berlin on January 3, 1909, its founding members included Rudolf Goldscheid, Ferdinand Tönnies, Max Weber, and Georg Simmel.[1] Its first president was Tönnies, who was forced out of office by the Nazi regime in 1933; his successor, Hans Freyer, attempted to reform the DGS on Nazi lines but ultimately decided to suspend its activities the following year.[2] The DGS was revived after World War II under the chairmanship of Leopold von Wiese in 1946, and has remained active since then, with about 3,200 members as of 2019[update].[3]