the first century CE Jewish historian Josephus in his work Against Apion and in a variant version by the first-century BCE Greek historian Diodorus. Hecataeus tells how the Egyptians blamed a plague on foreigners and expelled them from the country, whereupon Moses, their leader, took them to Canaan. In this version, Moses is portrayed extremely positively. Manetho, as preserved in Josephus's Against Apion, tells how 80,000 lepers and other "impure people", led by a priest named Osarseph, join forces with the former Hyksos, now living in Jerusalem, to take over Egypt. They wreak havoc until the pharaoh and his son chase them out to the borders of Syria, where Osarseph gives the lepers a law code and changes his name to Moses. The identification of Osarseph with Moses in Manetho's account may be an interpolation or may come from Manetho. Other versions of the story are recorded by the first-century BCE Egyptian grammarian Lysimachus of Alexandria, who set the story in the time of Pharaoh Bakenranef (Bocchoris), the first-century CE Egyptian historian Chaeremon of Alexandria, and the first-century BCE Gallo-Roman historian Gnaeus Pompeius Trogus. The first-century CE Roman historian Tacitus included a version of the story that claims that the Hebrews worshipped a donkey as their god in order to ridicule Egyptian religion, whereas the Roman biographer Plutarch claimed that the Egyptian god Seth was expelled from Egypt and had two sons named Juda and Hierosolyma. It is possible that the stories represent a polemical Egyptian response to the Exodus narrative. Egyptologist Jan Assmann proposed that the story comes from oral sources that "must [...] predate the first possible acquaintance of an Egyptian writer with the Hebrew Bible." Assmann suggested that the story has no single origin but rather combines numerous historical experiences, notably the Amarna and Hyksos periods, into a folk memory. There is general agreement that the stories originally had nothing to do with the Jews. Erich S. Gruen suggested that it may have been the Jews themselves that inserted themselves into Manetho's narrative, in which various negative actions from the point of view of the Egyptians, such as desecrating temples, are interpreted positively. Religious and cultural significance In Judaism Commemoration of the Exodus is central to Judaism, and Jewish culture. In the Bible, the Exodus is frequently mentioned as the event that created the Israelite people and forged their bond with God, being described as such by