 According to the "Encyclopaedia Judaica" internal evidence shows that it was written sometime between the 7th and 14th centuries CE.For example, Ishmael's wife's name is translated into Aramaic as Fatima (who was Mohammed's daughter) and therefore Targum Pseudo-Jonathan must have been written after Mohammed's birth.The classic Hebrew commentators would turn this argument around, and say that Mohammed's daughter was named after Ismael's wife.