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
Japheth as having been composed in stages beginning with the time of Solomon, when the Philistines still existed (they vanish from history after the Babylonian conquest of Canaan). However, Genesis 10:14 identifies their ancestor as Ham rather than Japheth. For those who take the genealogies of Genesis to be historically accurate, Japheth is commonly believed to be the father of Europeans. The link between Japheth and the Europeans stems from Genesis 10:5, which states: According to that book, Japheth and his two brothers formed the three major races: William Shakespeare's play "Henry IV, Part II" contains a wry comment about people