Habilitated doctor in the research of humanities, in the discipline of history. Employed as a university professor at the University of Warmia and Mazury in Olsztyn. He is engaged in research activities in the field of ancient history. These are mainly studies of the history of Carthage and Hellenistic states. Within the adopted methodological assumptions, the structure of ancient narrative sources is analyzed (in Ancient Greek and Latin), because in this way one can try to reach the primary sources and try to establish a criterions of their credibility. In any case, it is important to rely on the study of broad historical contexts that affect the narrative concepts presented by ancient authors. In addition he compares the evidences of the analysis of narrative sources with epigraphic and iconographic proofs, and simultaneously evaluates the scientific achievements to date. The results of detailed research lead to the development of new conclusions, which primarily concern the reconstruction of the functioning of the Carthaginian state, Hellenistic kingdoms and leading eminent representatives of epoch. Recently he deals with the circle of scientists, philosophers and artists associated around the court of Antigonus II Gonatas, the history of science (mainly medicine), he is also interested in matters concerning the reception of antiquity in European and world culture.