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
Ethnic groups in Europe Japheth from early times, corresponding to the division of the known world into three continents, the descendants of Shem peopling Asia and those of Ham peopling Africa. Identification of Europeans as "Japhetites" is also reflected in early suggestions for terming the Indo-European languages "Japhetic". In this tradition, the "Historia Brittonum" (9th century) introduces a genealogy of the peoples of the Migration period (as it was remembered in early medieval historiography) as follows, The text goes then on to list the genealogy of Alanus, connecting him to Japheth via eighteen generations. European culture is largely rooted in what is often referred