 The apogee of post-Darwinian race-thinking was arguably reached in the book The Foundations of the Nineteenth Century by Houston Stewart Chamberlain (1855–1927), the son-in-law of German opera composer Richard Wagner. Chamberlain argued in the evolutionary terms of sexual selection that distinct races emerged through geographical and historical conditions which create inbreeding among certain individuals with similar traits (Hannaford 1996, 351). Moving from this initial specification, Chamberlain then argued that the key strands of western civilization—Christianity and ancient Greek philosophy and art—emerged from the Aryan race. Jesus, for instance, was held to be of Aryan stock, despite his Jewish religion, since the territory of Galilee was populated by peoples descended from Aryan Phonecians as well as by Semitic Jews. Similarly, Aristotle’s distinction between Greeks and Barbarians was reinterpreted as a racial distinction between Aryans and non-Aryans. These Greek and Christian strands became united in Europe, particularly during the Reformation, which allowed the highest, Teutonic strain of the Aryan race to be freed from constraining Roman Catholic cultural fetters. But while Roman institutions and practices may have constrained the Teutonic Germans, their diametric opposite was the Jew, the highest manifestation of the Semitic Race. The European religious tensions between Christian and Jew were thus transformed into racial conflicts, for which conversion or ecumenical tolerance would have no healing effect. Chamberlain’s writings, not surprisingly, have come to be seen as some of the key intellectual foundations for twentieth century German anti-Semitism, of which Adolf Hitler was simply its most extreme manifestation.