Adam's blood has been shared with most of the human races, but some secured more than others. The mixed races of India and the darker peoples of Africa were not attractive to the Adamites. They would have mixed freely with the red man had he not been far removed in the Americas, and they were kindly disposed toward the yellow man, but he was likewise difficult of access in faraway Asia. Therefore, when actuated by either adventure or altruism, or when driven out of the Euphrates valley, they very naturally chose union with the blue races of Europe.

The blue men, then dominant in Europe, had no religious practices which were repulsive to the earlier migrating Adamites, and there was great sex attraction between the violet and the blue races. The best of the blue men deemed it a high honor to be permitted to mate with the Adamites. Every blue man entertained the ambition of becoming so skillful and artistic as to win the affection of some Adamite woman, and it was the highest aspiration of a superior blue woman to receive the attentions of an Adamite.

Slowly these migrating sons of Eden united with the higher types of the blue race, invigorating their cultural practices while ruthlessly exterminating the lingering strains of Neanderthal stock. This technique of race blending, combined with the elimination of inferior strains, produced a dozen or more virile and progressive groups of superior blue men, one of which you have denominated the Cro-Magnons.

For these and other reasons, not the least of which was more favorable paths of migration, the early waves of Mesopotamian culture made their way almost exclusively to Europe. And it was these circumstances that determined the antecedents of modern European civilization.

The early expansion of the violet race into Europe was cut short by certain rather sudden climatic and geologic changes. With the retreat of the northern ice fields the water-laden winds from the west shifted to the north, gradually turning the great open pasture regions of Sahara into a barren desert. This drought dispersed the smaller-statured brunets, dark-eyed but long-headed dwellers of the great Sahara plateau.

The purer indigo elements moved southward to the forests of central Africa, where they have ever since remained. The more mixed groups spread out in three directions: The superior tribes to the west migrated to Spain and thence to adjacent parts of Europe, forming the nucleus of the later Mediterranean long-headed brunet races. The least progressive division to the east of the Sahara plateau migrated to Arabia and thence through northern Mesopotamia and India to faraway Ceylon. The central group moved north and east to the Nile valley and into Palestine.

It is this secondary Sangik substratum that suggests a certain degree of kinship among the modern peoples scattered from the Deccan through Iran, Mesopotamia, and along both shores of the Mediterranean Sea.

About the time of these climatic changes in Africa, England separated from the continent, and Denmark arose from the sea, while the isthmus of Gibraltar, protecting the western basin of the Mediterranean, gave way as the result of an earthquake, quickly raising this inland lake to the level of the Atlantic Ocean.