found: Uivvaq heritage project WWW site, July 7, 2006:history page (Birnirk (AD 650-1150); The oldest remains at Uivvaq are those of the Birnirk culture. The Birnirk tradition was based on marine mammal hunting along the north Alaskan and Siberian coasts. These hunters lived in small, single-family, semi-subterranean structures located in settlements as small as two houses, but villages containing as many as 20 houses are also known. Tools used by the Birnirk people include bifacially chipped and ground stone knives and points, curvilinear impressed pottery, oil lamps, and ground slate)