The Neoeskimo Thule, or the Thule Inuit, occupying the North American Arctic from Alaska to Greenland approximately 1000 AD to 1400  - 1500 AD, are ancestors of today’s Iñupiat, Inuit and Kalaallit/Greenlanders. They hunted marine mammals, caribou, and birds, at times using weapons tipped with iron from Greenland’s Cape York meteorite or with smelted iron from sources outside North America circulated via their extensive trade networks. Evidence from the last thirty years has challenged the chronology of the Thule Migration from Alaska to Greenland and earlier understanding about iron that was available to the Thule. The reassessment has benefitted from recent excavations; longterm, interdisciplinary projects; new technologies; cut mark analysis; and spatial analysis enabled by GIS-based data from government-maintained archaeological databases.