EN
August Bielowski and Dominican Sadok Barącz were connected not only by means of friendship but also common passion which was history. It is confirmed by their mutual correspondence from years 1854–1872. This text is a critical editing of the letters by both scientists with a preface and comments. This correspondence brings both historians’ scientific view closer, it shows their relations, the reality of contemporary life and it characterizes the scientific environment of Galicia at that time. It also reveals problems which both researchers had to face.