with the Thebans also, and fearing an attack both from them and from Philip, he applied to Athens, and through the influence of Demosthenes not only obtained alliance, and an acknowledgment of the independence of Chalcis, but even induced the Athenians to transfer to that state the annual contributions (sunta/ceis) from Oreus and Eretria, Callias holding out great promises (apparently never realized) of assistance in men and money from Achaia, Megara, and Euboea.
This seems to have been in B. C. 343, at the time of Philip's projected attempt on Ambracia. Aeschines of course ascribes his rival's support of Callias to corruption; but Demosthenes may have thought that Euboea, united under a strong government, might serve as an effectual barrier to Philip's ambition. (Aesch. c. Ctes. § 89, &c.; Dem. Philipp. 3.85; Thirlwall's Greece, vol. vi. p. 19.) In B. C. 341, the defeat by Phocion of the Macedonian party in Eretria and Oreus under Cleitarchus and Philistides gave the supremacy in the