Theoretically, then, no accurate history could ever be constructed of events covering a longer period than about four generations before the introduction of writing. In actual practice the scope of the strictly historic view of man’s progress is confined to very much narrower limits than this, for the simple reason that the earliest written records that might otherwise serve to give us glimpses of remote history have very rarely been preserved. The destruction of ancient inscriptions with the lapse of centuries has led to a great deal of difference of opinion as to the time when the art of writing was introduced among various nations. In reference to the Greeks in particular, the dispute has been ardently waged, many scholars contending that the art of writing was little practised in Greece until the sixth century B.C. Later discoveries, in particular a knowledge of the inscription on the statue of Ramses at Abu Simbel, have made it clear that the earlier estimates were much too conservative, and it now seems probable that the Greeks had been acquainted with the art of writing for several, or perhaps many, centuries before the one previously fixed upon. It is not to be supposed, however, that the practice of the art of writing was universal in that early day. On the other hand, it was doubtless very exceptional indeed for the average individual to be able to write, and such difficulties as the lack of writing material stood in the way of composition until a relatively late period. But whether the art of writing was much or little practised in the early days does not greatly matter so far as the present-day historian is concerned, since practically all specimens of early writing in Greece disappeared in the course of succeeding ages. No fragment of any book proper, no scrap of parchment or papyrus, no single waxen tablet, from the soil of classic Greece has been preserved to us. The Greek authors are known to us only through the efforts of successive generations of copyists; and, with the exception of a comparatively small number of Egyptian papyri, there is almost nothing in existence representing the literature of classical Greece that is older than the middle ages. There are, to be sure, considerable numbers of monumental inscriptions dating from classical times. These have the highest interest for the archæologist, but in the aggregate they give but meagre glimpses into the history of antiquity. If we were dependent upon these records for all that we know of Greek history, the entire story of that people might be told, as far as we could ever hope to learn it, in a few pages.