Greenland is an autonomous constituent country within the Kingdom of Denmark between the Arctic and Atlantic Oceans, east of the Canadian Arctic Archipelago. Though physiographically a part of the continent of North America, Greenland has been politically and culturally associated with Europe (specifically Norway and Denmark, the colonial powers, as well as the nearby island of Iceland) for more than a millennium. The majority of its residents are Inuit, whose ancestors began migrating from the Canadian mainland in the 13th century, gradually settling across the island. 

Greenland is the world's largest island (Australia, although larger, is generally considered to be a continental landmass rather than an island). Three-quarters of Greenland is covered by the only permanent ice sheet outside Antarctica. With a population of about 56,480 (2013), it is the least densely populated country in the world. The Arctic Umiaq Line ferry acts as a lifeline for western Greenland, connecting the various cities and settlements. 

Greenland has been inhabited off and on for at least the last 4,500 years by Arctic peoples whose forebears migrated there from what is now Canada. Norsemen settled the uninhabited southern part of Greenland beginning in the 10th century, and Inuit peoples arrived in the 13th century. The Norse colonies disappeared in the late 15th century. Soon after their demise, beginning in 1499, the Portuguese briefly explored and claimed the island, naming it "Terra do Lavrador" (later applied to Labrador in Canada). In the early 18th century, Scandinavian explorers reached Greenland again. To strengthen trading and power, Denmark-Norway affirmed sovereignty over the island.
What people moved into the southern part?
Norsemen 