In January 1896, a few days after the announcement of the discovery of X-rays, experiments with X-ray photography began in Cracow, giving the beginnings of Polish radiology.
To this day, radiographs of various objects, like high-quality medical x-ray photographs, X- ray apparatuses, and lamps have survived from this period. A description of early X-ray photographs and scientific publications by professors of the Jagiellonian University are kept as a valuable source of information on the level of conducted experiments. The Polish pioneers of this field were Karol Olszewski (first Polish X-ray photographs) and the doctors of medicine Alfred Obaliński, Mieczysław Nartowski, Walery Jaworski, and Karol Mayer.
The authors describe the publications and objects stored in the units of the Jagiellonian University documenting the beginnings of Polish radiology.
