The Vienna circle started a small philosophical society meeting on every [[Thursday]] evening from 1924 onwards. Many members were leading Austrian mathmaticians, scientists and philosophers. <ref>http://plato.stanford.edu/entries/vienna-circle/#BasPerActOveDoc 2.2:Activities</ref> | The Vienna circle started a small philosophical society meeting on every [[Thursday]] evening from 1924 onwards. Many members were leading Austrian mathmaticians, scientists and philosophers. <ref>http://plato.stanford.edu/entries/vienna-circle/#BasPerActOveDoc 2.2:Activities</ref> |