Other artists, in turn, dealt with the human anatomy, the style of dress and the industries of old. When we gather together all of this illuminating material, it is safe to say that ancient artists have brought to us a source of material which is not the least of the treasures of antiquity. A final source of material is found upon the walls that made up the actual dwellings of old. This business of scribbling names and dates upon public buildings or objects of interest is not unique to modern men. Deplorable as the custom may be, this ancient vulgarity has, nevertheless, proved a great boon to the archeologist of our day. For instance, many of the scribes and officials of antiquity, traveling about the country upon the business of their lords, would visit one of the tombs of a former age. Prompted by curiosity and interest in the grandeur of antiquity, they came to stare and to learn. Their emotions being aroused they desired some expression. This desire they sometimes satisfied by inscribing upon the wall of a certain tomb or temple their names and the fact that at such a date they visited and saw this wonder. Since they generally dated their visit by the reign of the king under whom they lived and served, a chronology may be builded for antiquity from this source of material alone. It has been more or less customary in our era for the itinerant gentry to leave valuable information for fellows of their fraternity who come along after them. This custom also is a survival of an ancient day. A man journeying from one region to another would stop by the side of a blank wall and inscribe road directions for any who might follow after him. Sometimes he would add his name and the year of the reign of a given monarch. It was not unusual also for such an amateur historian to make some caustic and pertinent comments upon the country, the officials, or the people. These spontaneous records are priceless. They are the free expression of an honest opinion and are not constructed with the idea of deluding posterity with a false standard of the grandeur of some conquering king. It is rather amusing now to look back to the long battle that was fought between criticism and orthodoxy in this very field. With a dogmatic certainty which was characteristic of the assumptions of the school of higher criticism, these mistaken authorities assured us that the age of Moses was an age of illiteracy. In fact, the extreme scholars of this school asserted that writing was not invented until five hundred years after the age of Moses. We have ourselves debated that question with living men.