The tale of Urashima Taro holds many similarities with tales of the international catalogue Aarne–Thompson–Uther Index, grouped under type ATU 681, "The Relativity of Time". A similar story is The Marsh King's Daughter, a literary fairy tale by Hans Christian Andersen. However, Hiroko Ikeda's Japanese index of folktales lists Urashima Taro as type 470*, "The Dragon Palace" or "Urashima Taroo".Hiroko Ikeda. A Type and Motif Index of Japanese Folk-Literature. Folklore Fellows Communications Vol. 209. Helsinki: Suomalainen Tiedeakatemia. 1971. pp. 119-120.
The tale of Urashima Taro holds many similarities with tales of the international catalogue Aarne–Thompson–Uther Index, grouped under type ATU 681, "The Relativity of Time". A similar story is The Marsh King's Daughter, a literary fairy tale by Hans Christian Andersen. However, Hiroko Ikeda's Japanese index of folktales lists Urashima Taro as type 470*, "The Dragon Palace" or "Urashima Taroo".Hiroko Ikeda. A Type and Motif Index of Japanese Folk-Literature. Folklore Fellows Communications Vol. 209. Helsinki: Suomalainen Tiedeakatemia. 1971. pp. 119-120