sentences:  Archaeologists have found hundreds of ceremonial artifacts, ranging from ancient mirrors to ceramics dating from the Kofun period through the Muromachi period on the island.During the Edo period, the island was used as a prison by Toba Domain, with the sobriquet “Shima-Hachijo” is reference to the prison island of Hachijō-jima used by the Tokugawa shogunate.The island is the setting for the 1954 novel by Yukio Mishima "The Sound of Waves", and has been used several times as a filming location for movies.