The History Of Herodotus Volume 2 of 2
Page: 17573. Now Peloponnesus is inhabited by seven races; and of these, two are natives of the soil and are settled now in the place where they dwelt of old, namely the Arcadians and the Kynurians; and one race, that of the Achaians, though it did not remove from the Peloponnese, yet removed in former time from its own land and dwells now in that which was not its own. The remaining races, four in number, have come in from without, namely the Dorians, Aitolians, Dryopians and Lemnians. Of the Dorians there are many cities and of great renown; of the Aitolians, Elis alone; of the Dryopians, Hermion 42 and Asine, which latter is opposite Cardamyle in the Laconian land; and of the Lemnians, all the Paroreatai. The Kynurians, who are natives of the soil, seem alone to be Ionians, but they have become Dorians completely because they are subject to the Argives and by lapse of time, being originally citizens of Orneai or the dwellers in the country round Orneai. 43 Of these seven nations the remaining cities, except those which I enumerated just now, stood aside and did nothing; and if one may be allowed to speak freely, in thus standing aside they were in fact taking the side of the Medes.
74. Those at the Isthmus were struggling with the labour which I have said, since now they were running a course in which their very being was at stake, and they did not look to have any brilliant success with their ships: while those who were at Salamis, though informed of this work, were yet dismayed, not fearing so much for themselves as for Peloponnesus. For some time then they spoke of it in private, one man standing by another, and they marvelled at the ill-counsel of Eurybiades; but at last it broke out publicly. A meeting accordingly was held, and much was spoken about the same points as before, some saying that they ought to sail away to Peloponnesus and run the risk in defence of that, and not stay and fight for a land which had been captured by the enemy, while the Athenians, Eginetans and Megarians urged that they should stay there and defend themselves.
75. Then Themistocles, when his opinion was like to be defeated by the Peloponnesians, secretly went forth from the assembly, and having gone out he sent a man to the encampment of the Medes in a boat, charging him with that which he must say: this man's name was Sikinnos, and he was a servant of Themistocles and tutor to his children; and after these events Themistocles entered him as a Thespian citizen, when the Thespians were admitting new citizens, and made him a wealthy man. He at this time came with a boat and said to the commanders of the Barbarians these words: "The commander of the Athenians sent me privately without the knowledge of the other Hellenes (for, as it chances, he is disposed to the cause of the king, and desires rather that your side should gain the victory than that of the Hellenes), to inform you that the Hellenes are planning to take flight, having been struck with dismay; and now it is possible for you to execute a most noble work, if ye do not permit them to flee away: for they are not of one mind with one another and they will not stand against you in fight, but ye shall see them fighting a battle by sea with one another, those who are disposed to your side against those who are not."