Japheth Book of Genesis as one of the three sons of Noah, saved through the Ark. They are always in the order "Shem, Ham, and Japheth" when all three are listed (Genesis 5:32, 9:18 and 10:1), but Genesis 9:24 calls Ham the youngest, and Genesis 10:21 refers ambiguously to Shem as "brother of Japheth the elder," which could mean that either is the eldest. Most modern writers accept Shem-Ham-Japheth as reflecting birth order, but this is not always the case: Moses and Rachel also appear at the head of such lists despite explicit descriptions of them as younger siblings. Following the
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