Thu·le

from The American Heritage® Dictionary of the English Language, 5th Edition.

• The most northerly region of the habitable world to ancient Greek geographers. Posited as an island north of Britain, it has been variously identified with Iceland, Norway, and the Shetland Islands.
• A town of northwest Greenland northwest of Cape York. A US air base was built here after World War II.
• noun A Native American culture that spread eastward across coastal Arctic regions to eastern Canada and Greenland from its beginnings in the Bering Strait region, flourishing from about 1000 to 1600.