Yonaguni

Yonaguni lies at the southwestern end of the Ryukyu island chain, where open sea connects a small island with neighboring Yaeyama islands and the approaches toward Taiwan. Cultivated ground, grazing, fishing, and marine resources support local households. Cliffs, landing places, currents, and powerful storms shape the practical possibilities of travel, making island life dependent on both local production and careful maritime connection.

Island traditions remember a female leader, San'ai Isoba, around the turn of the sixteenth century. Yonaguni came under the Ryukyu kingdom in the early sixteenth century, though accounts differ on the precise date. After Satsuma's intervention in Ryukyu, a poll tax imposed from 1637 placed heavy demands on Sakishima islanders. Local traditions and maritime connections continued under these changing authorities.