Original sentence: As part of the Crown of Aragon — most historians would say the dominant part — the Catalans became a maritime power, expanding by trade and conquest into Valencia, the Balearic Islands, and even Sardinia and Sicily
Edited sentence: As part of the Crown of Aragon — most historians would say the dominant part — the Catalans became a great maritime power, expanding by trade and conquest into Valencia, the Balearic Islands, and even Sardinia and Sicily