corrientes 2 By margis05 Dec 24, 1921 circulo de viena Period: Dec 24, 1921 to Dec 25, 2016 corrientes 2 Dec 24, 1934 popper Dec 24, 1938 reichenbach Dec 24, 1960 khun Dec 24, 1992 giere Dec 24, 1995 echeverria