81:6.4

At the opening of the Andite era there were only two extensive and fertile open hunting areas in all the world. One was in North America and was overspread by the Amerinds; the other was to the north of Turkestan and was partly occupied by an Andonic-yellow race. The decisive factors in the evolution of a superior culture in southwestern Asia were race and climate. The Andites were a great people, but the crucial factor in determining the course of their civilization was the increasing aridity of Iran, Turkestan, and Sinkiang, which forced them to invent and adopt new and advanced methods of wresting a livelihood from their decreasingly fertile lands.