Generations of Noah Noah's three sons Shem, Ham and Japheth, from which were derived Semites, Hamites and Japhetites, certain of Noah's grandsons including Elam, Ashur, Aram, Cush, and Canaan, from which the Elamites, Assyrians, Arameans, Cushites and Canaanites, as well as further descendants including Eber (from which "Hebrews"), the hunter-king Nimrod, the Philistines and the sons of Canaan including Heth, Jebus and Amorus, from which Hittites, Jebusites and Amorites. As Christianity took over the Roman world, it adopted the idea that all the world's peoples were descended from Noah. But the tradition of Hellenistic Jewish identifications of the ancestry of various peoples, which
Shem-Tob ben Isaac of Tortosa the four seasons of the year. According to the superstitions of his time, he believed in the influence of the planets on man; and accordingly an entire treatise deals with astrology. His translation was undertaken with the view of spreading medical science among the Jews, so that they might not be dependent on Christian physicians (comp. 'Ab. Zarah ii.2). The translation is not literal; and in this Shem-Ṭob departed from the method of the earlier translators. As to the various names of diseases and medicaments, Shem-Ṭob employs all that he could find in the Bible and in Talmudic literature. Others