As far as my history books go, Greenland has been a frozen semi-continent
From 986 AD, Greenland's west coast was colonised by Icelanders and Norwegians in two settlements on fjords near the southwestern-most tip of the island. They shared the island with the late Dorset culture occupying the northern and eastern parts, and later with the Thule culture arriving from the north. The settlements, such as Brattahlid, thrived for centuries but disappeared sometime in the 15th century, at the time of one given date for the onset of the Little Ice Age. It is debated[who?] whether data from ice cores indicate that between 800 and 1300 AD the regions around the fjords of southern Greenland experienced a mild climate, with trees and herbaceous plants growing and livestock being farmed. What is verifiable is that the ice cores indicate Greenland experienced dramatic temperature shifts many times over the past 100,000 years.