He graduated at the Lwów University. At the same university he gained PhD in 1926 and passed his habilitation in history in 1932. He was professor on the Lwów University since 1939. During the German occupation of Poland in World War II he became principal of the Underground University of Lwów, accidentally jailed.
- Kolonizacja wewnętrzna a napływ Niemców od XVI do XVIII w. (1945)
- Udział chłopów w obronie Polski. Zarys historyczny (1946)
- Historia chlopów polskich (t. 1-2 1970-72)