Career

He was one of the cofounders of the pre World World War II biweekly Pax. After the war he wrote for the magazines Znak, Odra, and Tygodnik Powszechny. He was also one of the organizers (together with, among others, Czesław Miłosz) of the poetry group Zagary.

He is best known as the author of the four volume historical epic Boleslaw Chrobry which was written over the whole lifetime of the author

This epic tells the story of the founding and first years of existence of the Polish state.