Kaguya
As stated above, non-genuine folktales are those already committed to writing long ago, the earliest being the tale of Princess Kaguya (or "The Tale of the Bamboo Cutter"), an example of the monogatari type of romance dated to as early as the 10th century, though extant manuscripts are much later. The text mentions, for example, the flame-proof " (or salamander)'s fur robe," which attests to a considerable degree of book-knowledge and learning by its author.