The Jātakas so constituted were carried to Ceylon in the Pāli language, when Buddhism was first introduced into that island (a date that is not quite certain, but may be taken provisionally as about 200 B.C.); and the whole was there translated into and preserved in the Siŋhalese language (except the verses, which were left untranslated) until the compilation in the fifth century A.D., and by an unknown author, of the Pāli Jātaka Book, the translation of which into English is commenced in this volume.
When we consider the number of elaborate similes by which the arguments in the Pāli Suttas are enforced, there can be no reasonable doubt that the Buddha was really accustomed to teach much by the aid of parables, and it is not improbable that the compiler was quite correct in attributing to him that subtle sense of good-natured humour which led to his inventing, as occasion arose, some fable or some tale of a previous birth, to explain away existing failures in conduct among the monks, or to draw a moral from contemporaneous events. It is even already possible to point to some of the Jātakas as being probably the oldest in the collection; but it must be left to future research to carry out in ampler detail the investigation into the comparative date of each of the stories, both those which are called 'Stories of the Past' and those which are called 'Stories of the Present.'
