North to Greenland
DNA samples extracted from 3,000-year-old human hair excavated in Greenland indicate that the first humans to live in the far north were migrants from East Asia and were unrelated to Native Americans or the ancestors of modern Eskimos. These early inhabitants were probably later replaced by people migrating from America, who gave rise to today's Eskimo populations. The DNA evidence overturns long-held theories of how the far north was populated.
SOURCE: From News Reports