History of the Peloponnesian War

Now Demosthenes, the Athenian, (for after what had happened in Aetolia, he was still in the neighbourhood of Naupactus) having previous notice of the armament, and being alarmed for the town, went and persuaded the Acarnanians (though with difficulty, on account of his retreat from Leucas) to go to the relief of Naupactus.

Accordingly they sent with him on board his ships a thousand heavy-armed, who threw themselves into the place and saved it. For the walls being extensive, and the garrison small, there was reason to fear that they might not hold out.

When Eurylochus and his colleagues found that this force had entered the town, and that it was impossible to take it by storm, they withdrew, not towards the Peloponnese, but to Aeolis, [*]( i. e. (as Arnold explains it, after Wasse, Palmer, and Kruse,) the district once called Aeolis was now called by the names of the two principal towns in it, Calydon and Pleuron. Poppo and Göller understand it as the ancient came of Calydon alone.) which is now called Calydon and Pleuron, with the places in that quarter, and to Proschium in Aetolia.