The
Ainu of Sakhalin appear to have been present on Sakhalin relatively early. Linguistic evidence shows that proto-Ainu was spoken in southern Sakhalin and northeastern Hokkaido and expanded from this region into the rest of Hokkaido, the Kurils and partially northern Honshu. Later Sakhalin Ainu expanded from southern Sakhalin into northern Sakhalin and possibly the
Amur region. A study by Lee and Hasegawa from the
Waseda University using linguistic, archeologic and genetic evidence, found that the Ainu are significantly linked to the
Okhotsk culture of northern Hokkaido. Oral history records Ainu displacement of a people in central Sakhalin that they called the
Tonchi, who, based on toponymic evidence, were
Nivkh. The earliest attested records of Sakhalin Ainu were several sentences transcribed by the Dutch explorer
Maarten Gerritszoon Vries in 1643. In 1787, the French explorer
Lapérouse recorded 161 Sakhalin Ainu words. After World War II, when Sakhalin came under Soviet control, all but 100 of the Ainu living in Sakhalin were deported to Japan. The last Ainu household on the island died out in the 1960s. The language survived longer in Japan, going extinct in 1994 with the death of
Tahkonanna. Currently, there is a movement among Sakhalin Ainu born and raised in Hokkaido and Honshu to preserve their language and culture, such as the . == Dialects ==