Lud, son of Shem Lud, son of Shem Lud (Hebrew: ) was a son of Shem and grandson of Noah, according to "Genesis" 10 (the "Table of Nations"). Lud should not be confused with the Ludim, said there to be descended from Mizraim, a son of Ham. The descendants of Lud are usually, following Josephus, connected with various Anatolian peoples, particularly Lydia (Assyrian "Luddu") and their predecessors, the Luwians; cf. Herodotus' assertion ("Histories" i. 7) that the Lydians were first so named after their king, Lydus (Λυδός). However, the chronicle of Hippolytus of Rome (c. 234 AD) identifies Lud's descendants with the "Lazones" or
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