As regards the evidence afforded by ancient remains, while adducing as a proof of the insecure character of early Greek society the fact of their cities {31} being always built at some distance from the sea, yet he is careful to warn us, and the caution ought to be borne in mind by all archæologists, that we have no right to conclude from the scanty remains of any city that its legendary greatness in primitive times was a mere exaggeration. ‘We are not justified,’ he says, ‘in rejecting the tradition of the magnitude of the Trojan armament, because Mycenæ and the other towns of that age seem to us small and insignificant. For, if Lacedæmon was to become desolate, any antiquarian judging merely from its ruins would be inclined to regard the tale of the Spartan hegemony as an idle myth; for the city is a mere collection of villages after the old fashion of Hellas, and has none of those splendid public buildings and temples which characterise Athens, and whose remains, in the case of the latter city, would be so marvellous as to lead the superficial observer into an exaggerated estimate of the Athenian power.’ Nothing can be more scientific than the archæological canons laid down, whose truth is strikingly illustrated to any one who has compared the waste fields of the Eurotas plain with the lordly monuments of the Athenian acropolis. {32} On the other hand, Thucydides is quite conscious of the value of the positive evidence afforded by archæological remains. He appeals, for instance, to the character of the armour found in the Delian tombs and the peculiar mode of sepulture, as corroboration of his theory of the predominance of the Carian element among the primitive islanders, and to the concentration of all the temples either in the Acropolis, or in its immediate vicinity, to the name of _ἄστυ_ by which it was still known, and to the extraordinary sanctity of the spring of water there, as proof that the primitive city was originally confined to the citadel, and the district immediately beneath it (ii. 16). And lastly, in the very opening of his history, anticipating one of the most scientific of modern methods, he points out how in early states of civilisation immense fertility of the soil tends to favour the personal aggrandisement of individuals, and so to stop the normal progress of the country through ‘the rise of factions, that endless source of ruin’; and also by the allurements it offers to a foreign invader, to necessitate a continual change of population, one immigration following on another. He exemplifies his theory by pointing to the endless political revolutions that characterised Arcadia, Thessaly and Boeotia, the three richest spots in Greece, as well as by the negative instance of the undisturbed state in primitive time of Attica, which was always remarkable for the dryness and poverty of its soil.