About 15 000 BP (Before Present), the postglacial seas receded. A land bridge emerged between present-day Siberia and Alaska, leading to the Yukon. Today the Bering Strait covers this route, once travelled by great numbers of families from Asia.
From this initial wave of immigration descended the ancestors of the First Nations of America, who explored new territories and lived off a land dominated by tundra. Within just a few centuries, they had reached the Prairies and the American Southwest, travelling east of the Rocky Mountains.
About 10 000 BP, Nunavik's current territory was covered by a thick layer of ice, and it is only around 7 500 BP that climate change allowed the gradual shrinkage of the ice sheet. Around 6 000 BP, the withdrawal of the glacier enabled the emergence of land, allowing the territory’s colonization by flora and fauna that were adapted to an arctic environment. The earliest evidence of human occupation in Nunavik dates back to approximately 4 000 years BP.