Before revision: History was composed mainly of hagiographies of monarchs and epic poetry describing heroic deeds such as The Song of Roland—about the Battle of Roncevaux Pass (778) during Charlemagne's first campaign to conquer the Iberian peninsula ) .
After revision: History was composed mainly of hagiographies of monarchs and epic poetry describing heroic deeds such as The Song of Roland—about the Battle of Roncevaux Pass (778 during Charlemagne's first campaign to conquer the Iberian peninsula ) .