After a thousand years or more the last visible traces of those former masters may then be found in a lighter tint of the skin which the Aryan blood had bequeathed to the subjugated race, and in a fossilized culture of which those Aryans had been the original creators. For just as the blood. of the conqueror, who was a conqueror not only in body but also in spirit, got submerged in the blood of the subject race, so the substance disappeared out of which the torch of human culture and progress was kindled. In so far as the blood of the former ruling race has left a light nuance of colour in the blood of its descendants, as a token and a memory, the night of cultural life is rendered less dim and dark by a mild light radiated from the products of those who were the bearers of the original fire. Their radiance shines across the barbarism