Thule ancestors of the Inuit spread across the Arctic
Whale-hunting migrants from Alaska settle the Eastern Arctic and Greenland within a century
Quick facts
- Origin
- Northern Alaska
- Migration date
- c. 1200 CE (roughly 800 years ago)
- Key technology
- Umiak whaling boats, toggling harpoons, snow houses
- Reached Labrador
- c. 1500 CE
What happened
Around 800 years ago, Thule people from northern Alaska began a rapid eastward migration, following bowhead whales as leads opened in the sea ice of the Beaufort Sea and Amundsen Gulf during a warming period. Within roughly a century they had spread across what is now the Northwest Territories, Nunavut, northern Quebec, Labrador, and Greenland. Thule technology was built around hunting whales that could reach 20 metres long, using umiaks (large skin-covered boats) and toggling harpoons; a single whale could feed a village through the winter. They also built snow houses using specialized snow knives, a technology later known worldwide as the igloo, and by roughly 1500 CE had reached as far as Saglek in Labrador.
Why it matters
The Thule are the direct ancestors of the Inuit living across Arctic Canada and Greenland today, and their rapid spread within a single century shows a highly mobile, whale-dependent culture rather than a slow generational drift. Their arrival also displaced or absorbed the earlier Dorset people, who had occupied the Eastern Arctic for over a thousand years before them.
How we know
Archaeological sites across the Eastern Arctic show a consistent Thule tool kit, including harpoon heads and umiak remains, and radiocarbon dating on organic material from these sites supports the roughly 800-years-ago migration date used by the Canadian Encyclopedia and Newfoundland and Labrador Heritage.
Sources
- The Canadian Encyclopedia. Early Inuit (Thule Culture) · Reputable sourcethecanadianencyclopedia.ca · The domain "thecanadianencyclopedia.ca" is on our Reputable source registry.
- Newfoundland and Labrador Heritage (heritage.nf.ca). The Thule · Reputable sourceheritage.nf.ca · The domain "heritage.nf.ca" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
See something wrong? . Corrections with a source get fixed fastest.
Part of a timelineHistory of Canada38 events · From the first peoples of the Americas and a Norse camp in Newfoundland to Confederation, the railway, two world wars, and a reckoning with the residential-school systemView all →