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
Curse of Ham servant of servants shall he be unto his brethren. 26 And he said, Blessed be the Lord God of Shem; and Canaan shall be his servant. 27 God shall enlarge Japheth, and he shall dwell in the tents of Shem; and Canaan shall be his servant. The objective of the story may have been to justify the subject status of the Canaanites, the descendants of Ham, to the Israelites, the descendants of Shem. The narrative of the curse is replete with difficulties: It is uncertain what the precise nature of Ham's offense is. Verse 22 has been a subject of