Complex sentence: In the 7th and 8th centuries this area, like others, suffered raids and invasions by Vikings from Norway, and the islands became known to the Gaels as "Innse-Gall", the Islands of the Strangers.
Split into simpler sentences: In the 7th and 8th centuries this area, like others, experienced raids and invasions by Vikings from Norway. The islands became known to the Gaels as "Innse-Gall", the Islands of the Strangers.