The recovery of the history of the nearer Orient in the decipherment of Egyptian hieroglyphic and Babylonian cuneiform brought with it many unexpected revelations, but none more impressive than the length of the development disclosed. In Babylonia, however, the constant influx of foreign population resulted in frequent and violent interruption of the development of civilization. In Egypt, on the other hand, the isolation of the lower Nile valley permitted a development never seriously arrested…