Polish officers was executed by the Soviets. After the war, Ferdynand Goetel was to the Soviets one of the most inconvenient witnesses of the Katyn massacre. Education during the war Thanks to the generosity and dedication of the Mining Academy employees, the collection of the MA Main Library was safely deposited in the Jagiellonian Library. Academy activities had to go underground, and the governance attempted to reclaim or establish makeshift teaching venues and educational materials. With the consent of the occupier, in 1940, a State School of Mining, Metallurgy, and Measurement (Staatlische Fachschule für Berg- Hütten- und Vermessungwesen) was established with Polish as the language of instruction. Professor Walery Goetel took the position of the head teacher; other professors from the closed Mining Academy became teachers. Both professors and assistants were also involved in underground education, lecturing, and teaching classes for academic students. During the underground schooling action, 278 examinations and 16 diploma exams took place. After World War II In 1947, by virtue of an important resolution, the academy was renamed Academy of Mining and Metallurgy (Polish: Akademia Górniczo-Hutnicza, AGH). Formal approval of this change by the central authorities came only in 1949. Professor Walery Goetel, who promoted a far-reaching development plan, initiated the expansion of the academy. His plan was carried out and implemented in the following decades. During the authoritarian times of the Polish People's Republic (Polish: Polska Republika Ludowa, PRL), the academic and educational profile of the academy was adjusted to the needs of industry, and the university itself thrived, as no other higher education institution at that time. In 1969, the academy received a patron – Stanisław Staszic. It was also when the academy obtained its banner. On December 14, 1981, the AGH academic community, under the banner of the ‘Solidarity’ Movement, took a stand and protested against suppressing – by introducing martial law – the newly acquired sense of freedom and fellowship. The AGH NSZZ ‘Solidarity’ was an academic organisation, the only one in Krakow and one of three in the country, that organised sit-down strikes in the first days of the martial law. Since the 1990s, the academy has been developing programmes of study that chart out technological advancement, such as automatics and robotics, computer science, electronics and telecommunications, biomedical engineering, and mechatronics. In 1999, the top of the AGH Main Building was once again crowned with a reconstructed statue of Saint Barbara,