It is thought that the Ainu culture was born by the fusion of the Okhotsk culture with the culture that succeeded from the previous Satsumon period, whereupon it gradually absorbed the culture in Honshu.
アイヌ文化は、前代の擦文時代を継承しつつオホーツク文化と融合し、本州の文化を摂取して生まれたと考えられている。