Born on 24th June 1889 in Krakow, Joachim Metallmann, son of  Menasze  and Regina, née Friedner, was a  philosopher of natural science, methodologist and professor at the Jagiellonian University. A St.Ann’s Gymnasium (currently Ist Secondary School) graduate, Metallmann studied Philosophy and Physics at the Philosophy Department at the Jagiellonian University between 1907-1912. He obtained the PhD title in 1912. Since 1917 he held the position of a gymnasium teacher in Mielec and Krakow (the Adam Mickiewicz Gymnasium number VII, the Hebrew Gymnasium, Vth Secondary School).  From 1931 up to the outbreak of WWII Metallmann was a Philosophy lecturer at the  National Pedagogium in Krakow. In 1932 he went to France on a scholarship and obtained his habilitation after returning to Poland in 1933. In  1934, having the…