Noah about to be baptised. In medieval Christianity, Noah's three sons were generally considered as the founders of the populations of the three known continents, Japheth/Europe, Shem/Asia, and Ham/Africa, although a rarer variation held that they represented the three classes of medieval society – the priests (Shem), the warriors (Japheth), and the peasants (Ham). In medieval Christian thought, Ham was considered to be the ancestor of the people of black Africa. So, in racialist arguments, the curse of Ham became a justification for the slavery of the black races. Isaac Newton, in his religious works on the development of religion, wrote
Levi ben Japheth Levi ben Japheth Levi ben Japheth (Heb. Levi ben Yafet ha-Levi; Arab. Abu Sa'id Levi ibn Yafat was a Karaite Jewish scholar who flourished, probably at Jerusalem, in the first half of the eleventh century CE. Although, like his father Japheth ben Ali, he was considered one of the greatest authorities among the Karaites, who called him "al-Shaikh" (the master), no details of his life are to be found in the Karaite sources. There even exists confusion in regard to his identity; in some of the sources he is confounded with his brother, or his son Sa'id (comp. Pinsker, "Liqqute