Independently, the Machist philosopher Joseph Petzoldt and others founded the local Berlin group (German: "Berliner Ortsgruppe") of the International society for empirical philosophy (German: "Internationale Gesellschaft für empirische Philosophie"), which was subsequently joined by the members of Reichenbach's group as well.
[1][2][3] Additional members of the group include philosophers and scientists such as Carl Gustav Hempel, David Hilbert and Richard von Mises.
Together with the Vienna Circle, they published the journal Erkenntnis ("Knowledge") edited by Rudolf Carnap and Reichenbach, and organized several congresses and colloquia concerning the philosophy of science, the first of which was held in Prague in 1929.
Members of the Berlin Circle were particularly active in analyzing the philosophical and logical consequences of the advances in contemporary physics, especially the theory of relativity.
[5] After emigrating to various countries the group effectively came to an end, but not without influencing a wide range of philosophers of the 20th century, its method having been especially influential on analytic philosophy and futurology.