The most important scientific controversies recorded in 'Przeglad Historyczny' (Historical Review) are presented. In the authoress opinion they are discussions concerning research methodology dating from the emergence of the historians' modern workshop (the beginning of the twentieth century); interwar discussions about Poland during the Piast era; debates on the impact exerted by non-scientific factors - primarily anti-German phobias - upon the outcome of historical research, reflected in 'Przeglad Historyczny' after the end of the second world war; the most important discussions of the 1970s, including the one involving Karol Buczek and Karol Modzelewski about the oldest organisation of the Polish state, and the discussion provoked by Stanislaw Piekarczyk's proposal to create a historiography recorded in the language of mathematics. The article ends with a description of the discussion from 1981 dealing predominantly with problems associated with research into most recent history. She indicated the fiery language of the debates, frequently transcending the range of reasonable arguments already during the first years of the existence of the periodical despite the fact that already in 1909 its editors published a declaration in which they reserved the right to exclude texts containing 'personal remarks' or 'unsuitable expressions'. She also pointed out that the topics of the discussions reflect both assorted stages in the development of historical studies (methodological debates, the dispute between Buczek and Modzelewski), as well as variable non-scientific circumstances (the interest in the Piast dynasty shown after the rebirth of the Polish state in 1918, the controversies oscillating around anti-German phobias). Just as symptomatic is the lack of all discussion during the Stalinist period, and the halt put to it in 1981 after the proclamation of martial law.