until a British officer, Henry Rawlinson, who found the famous inscription of Behistun, gave us a workable key to the nail-writing of western Asia.

Compared to the problem of deciphering these nail-writings, the job of Champollion had been an easy one. The Egyptians used pictures. But the Sumerians, the earliest inhabitants of Mesopotamia, who had hit upon the idea of scratching their words in tablets of clay, had discarded pictures entirely and had evolved a system of V-shaped figures which showed little connection with the pictures out of which they had been developed. A few examples will show you what I mean. In the beginning a star, when drawn with a nail into a brick looked as follows: