Original sentence: Kadłubek's relation is unsub-stantiated; present-day historicians claim this "great battle" was rather an unimportant skirmish, and Kadłubek's chronicle (written almost hundred years after this incident) in this topic is not reliable
Edited sentence: Kadłubek's relation is unsub-stantiated; present-day historians claim this "great battle" was rather an unimportant skirmish, and Kadłubek's chronicle (written almost hundred years after this incident) in this topic is not reliable