[38] And this is so exceedingly striking, that I am much surprised at the learned disputants upon the era of Homer having failed to notice this argument; especially when we see how pitiably poor they are in probabilities or presumptions of any kind. The miserable shred of an argument with those who wish to carry up Homer as high as any colourable pretext will warrant, is this, that he must have lived pretty near to the war which he celebrates, inasmuch as he never once alludes to a great revolutionary event in the Peloponnesus. Consequently, it is argued, Homer did not live to witness that revolution. Yet he must have witnessed it, if he had lived at the distance of eighty years from the capture of Troy; for such was the era of that event, viz., the return of the Heraclidae. Now, in answer to this, it is obvious to say that negations prove little. Homer has failed to notice, has omitted to notice, or found no occasion for noticing, scores of great facts contemporary with Troy, or contemporary with himself, which yet must have existed for all that. In particular, he has left us quite in the dark about the great empires, and the great capitals on the Euphrates and the Tigris, and the Nile; and yet it was of some importance to have noticed the relation in which the kingdom of Priam stood to the great potentates on those rivers. The argument, therefore, drawn from the non-notice of the Heraclidae, is but trivial. On the other hand, an argument of some strength for a lower era as the true era of Homer, may be drawn from the much slighter colouring of the marvellous, which in Homer's treatment of the story attaches to the _Iliad_, than to the _Seven against Thebes_. In the Iliad we have the mythologic marvellous sometimes; the marvellous of necessity surrounding the gods and their intercourse with men; but we have no Amphiaraus swallowed up by the earth, no Oedipus descending into a mysterious gulf at the summons of an unseen power. And beyond all doubt the shield of Achilles, supposing it no interpolation of a later age, argues a much more advanced state of the arts of design, etc., than the shields, (described by AEschylus, as we may suppose, from ancient traditions preserved in the several families), of the seven chiefs who invaded Thebes.