One of the main reason is that many Viking groups from Scandinavia. From the 9th century, Norsemen settled in Shetland. They set up their own civilization. They were later invaded by Harald Finehair, the first king of Norway and remained under the control of Norway.The Scots on claimed sovereignty in the Shetlands in 1223. Over the centuries many of the traditions, languages, music and heritage in the Shetlands was closely linked to their Scandinavian background.
It displays three type of glacial erosion, like the cirque that is created by the side wards erosion and pyramidal peak also called as the horn. And the presence of the Arêtes that is a narrow region of rocks that are separated by the two valleys. The three main type of the erosion process of the glaciers are of plucking, and abrasion and the freeze-thaw
