 Sakhalin was inhabited in the Neolithic Stone Age.Flint implements such as those found in Siberia have been found at Dui and Kusunai in great numbers, as well as polished stone hatchets similar to European examples, primitive pottery with decorations like those of the Olonets, and stone weights used with fishing nets.A later population familiar with bronze left traces in earthen walls and kitchen-middens on Aniva Bay.