shattered to pieces. Sonderaktion Krakau On September 6, 1939, a general assembly of Jagiellonian University professors was called to inform them about the policy of German authorities on science and education. On this day at noon, in room 66 of the JU Collegium Novum, professors and lecturers gathered numerously. The building was surrounded by the Gestapo and the meeting participants were arrested. Among the detainees were also Mining Academy professors who had attended another meeting in the boardroom of the JU Faculty of Philosophy. 183 people were imprisoned, among them professors, associate professors, and assistants from both universities, as well as many other people outside the academic community. The arrested were detained at the prison at Montelupich Street in Krakow and subsequently transferred to the barracks at Mazowiecka Street. Later, they were transported to a prison in Wrocław and finally to the concentration camp in Sachsenhausen. The concentration camp took the lives of the following: Professor Antoni Hoborski – first Mining Academy rector (1920–1922), Professor Władysław Takliński – Mining Academy rector (1933–1939), Antoni Meyer, DSc – head of the MA Faculty of Mining Department of Legal Theory (1932–1939). Others who remained in the camp were Andrzej Bolewski, Stanisław Gołąb, and Julian Kamecki. They were transported to the concentration camp in Dachau and released only in the last quarter of 1940. Releasing the professors was possible due to a united protest action of world scientific communities. Mining Academy employees as victims of the Katyn massacre Among the victims murdered by the NKVD on the territory of the Soviet Union between April and May 1940 were three Mining Academy employees: Zygmunt Mitera, DSc – Assistant Professor at the Faculty of Mining (murdered in the so-called Kharkov camp), Tadeusz Ramza, Eng – Senior Teaching Assistant at the Faculty of Mining (shot in the back of the head during the liquidation of the prison camp of Polish officers in Starobielsk), Augustyn Jelonek – Assistant Professor at the Faculty of Metallurgy (shot in the back of the head during the liquidation of the prison camp of Polish officers in Starobielsk). Forced by the Germans, but with the consent of the Polish government in London and the Polish Underground State, in 1943, more than a dozen Poles went to Katyn, including the writer Ferdynand Goetel (secretary of the Mining Academy between 1920 and 1925, brother of Professor Walery Goetel). The committees corroborated that the massacre of