The case is somewhat different with Egypt and with Mesopotamia, since the climate of the former and the resistant character of the writing materials employed by the latter have permitted the modern world to receive direct messages that, under other circumstances, must inevitably have been lost. But even here the historical records are neither so abundant nor so comprehensive in their scope as might have been hoped. History-writing, in anything like a comprehensive meaning of the words, is a relatively modern art. The nearest approach to it among the nations of remote antiquity got no farther than the recording of the personal deeds of individual kings. Such records, indeed, are excellent materials for history, but they hardly constitute history by themselves. The entire lists of Egyptian inscriptions, so far as known, suffice merely to give glimpses of Egyptian history; and if the Mesopotamian records are, in this regard, somewhat more satisfactory, it is only in reference to a comparatively brief period of later Assyrian history that they can be said to have anything like comprehensiveness. As to the other nations of Oriental antiquity,--Indians, Persians, Syrians, the inhabitants of Asia Minor,--the entire sum of the monumental records that have been transmitted to us amounts to nothing more than a scattered series of vague suggestions. In the classical world Rome is but little better off than Greece in this regard. As to both these countries, we depend for our knowledge almost exclusively upon the works of historians of a relatively late period. Before Herodotus, who lived in the fifth century B.C., there is almost no consecutive history proper of Greece; and despite all the efforts of archæologists, records of Roman progress scarcely suffice to push back the prehistoric veil beyond the time of the banishment of the kings. Indeed, even for a century or two after this event transpired, the would-be historian finds himself still on very treacherous ground. The reason for this is that there were no contemporary historians in Rome in this early period; and until such contemporary chroniclers appear, no secure record of history is possible. Once it became the fashion to write chronicles of events, the custom rapidly spread and took a fixed hold upon the people. From the day of Herodotus there was no dearth of Greek historians, and after Polybius there is an unbroken series of Roman chroniclers.