was a Japanese writer, children's author, oral storyteller, German literature scholar, journalist and haiku poet from the Meiji and Taishà  eras. His birthname was . Pseudonyms include Sazanami Sanjin (漣山人), Rakutenkyo (楽天屠) and à Âe Sazanami (大æ±Âå°Âæ³¢).
He is regarded as a pioneer of Japanese children's literature who ushered the history of modern children's literature by publishing Japan's first original children's story, âÂÂKoganemaruâ (Hakubunkan, 1891).
He used the term otogibanashi (ãÂÂä¼½åº) to describe children's literature and art works during the Meiji period (1868-1912), and spread children's literature throughout Japan through magazines such as âÂÂShà Ânen Sekai,â âÂÂShà Âjo Sekai,â and âÂÂYà Ânen Sekai,â of which he was editor in chief.
He has published a series of books, including (24 volumes), (24 volumes), and â (100 volumes), Japan's first authorial children's book series, and has systematically retold folk tales from Japan and around the world.
Many of the folktales and heroic tales, such as âÂÂMomotarà Â,â âÂÂKintarà Â,â âÂÂUrashima Tarà Â,â and âÂÂKobutori Jiisanâ were retold by Sazanami and reached the hands of young readers. His retellings were first translated into English by Yei Theodora Ozaki as The Japanese Fairy-Book (1903).