The Stone Age remains in Egypt are of very uncertain date; there are Palæolithic and then Neolithic remains. It is not certain whether the Neolithic pastoral people who left those remains were the direct ancestors of the later Egyptians. In many respects they differed entirely from their successors. They
About 5000 b.c., or earlier, the traces of these primitive peoples cease, and the true Egyptians appear on the scene. The former people were hut builders and at a comparatively low stage of Neolithic culture, the latter were already a civilized Neolithic people; they used brick and wood buildings instead of their predecessors' hovels, and they were working stone. Very soon they passed into the Bronze Age. They possessed a system of picture writing almost as developed as the contemporary writing of the Sumerians, but quite different in character. Possibly there was an irruption from southern Arabia by way of Aden, of a fresh people, who came into upper Egypt and descended slowly towards the delta of the Nile. Dr. Wallis Budge writes of them as "conquerors from the East." But their gods and