Before revision: The development of urban centers in the Low Countries shows the process in which a region, the Low Countries in Western Europe, evolves from a highly rural outpost of the Roman Empire into the largest urbanized area above the Alps by the 15th century CE.
After revision: The development of urban centers in the Low Countries shows the process by which the Low Countries in Western Europe, evolved from a highly rural outpost of the Roman Empire into the largest urbanized area north of, a region the Alps by the 15th century CE.