The Holocaust, as it has become known, the genocide of European Jews by Nazi Germany under Hitler's regime, remains the most unequivocal and horrific crime in human history. It is the most dreadful experience humans have endured, something unprecedented in its conception and execution.

The broader ideas and theories upon which the criminal Nazi anti-Semitic worldview was based, and from which it drew inspiration and believed it was justified, were mainly two: Europe's and the USA's racism that had prevailed for two and a half centuries; and the intensely anti-Jewish stance and theology of Christianity that spanned over two thousand years. This book covers the following themes: (a) Christian anti-Judaism and anti-Semitism (Ancient Christianity, the Middle Ages, the Renaissance); (b) racism, with an emphasis on the most reputable form, scientific racism or intellectual racism (Enlightenment, 19th century, and early 20th century); (c) European anti-Semitism (from the Enlightenment to the interwar period), focusing on the German and French cases; (d) the main thinkers behind the (myth) of a superior Aryan or Teutonic race; (e) racism and anti-Semitism in American science and thought; (f) The Protocols of the Elders of Zion; (g) racism and anti-Semitism in German science and thought (1900-1932); and (h) Nazi science (physical anthropology, biology, genetics, eugenics, psychiatry, and other scientific disciplines) that intellectually prepared the groundwork for the so-called "Final Solution", the extermination of the Jews of the Old Continent.