Aegina is not mentioned in these proceedings, but C. Mueller may be right in including it among “the rest of the islands[910].” The Hysiae campaign is roughly contemporary with the second Messenian war, in which Argos took part against the Spartans[911], and of which indeed it may have been an incident. Now in that war the Samians took part by sea against the Argives[912], and it is natural to connect this action of theirs with their repeated attacks on Aegina in the days of the Samian King Amphikrates, at some period indefinitely before the reign of Polycrates. The Samians were certainly a naval power in the first half of the seventh century. The four triremes built for them in 704 B.C. marked for Thucydides an epoch in naval history[913]. About 668 B.C. Kolaios the Samian made his famous voyage beyond the Straits of Gibraltar to the Spanish seaport of Tartessus, a voyage that implies much previous naval enterprise on the Samians’ part. The rivalry with Aegina was probably commercial. Kolaios and his crew returned from the “silver rooted streams” of the Tartessus river[914], having “made the greatest profits from cargoes of all Greeks of whom we have accurate information, excepting Sostratos the Aeginetan: for it is impossible for anyone else to rival him[915].” Samian attacks on Aegina are thus particularly likely to have happened about the time of the second Messenian war. A century ago C. Mueller[916] argued that some event or other connecting Samos with Aegina must have been closely connected with the revolt of Aegina from Epidaurus, since the revolt was described in the _History of Samos_ of the Samian historian Duris (born about 340 B.C.)[917]. From this he proceeds to advocate a date for the revolt not very long before the war between Samos and Aegina of 520 B.C. Arguments based on the laws of digression observed by a writer whose works are known to us only in a few fragments need to be used with caution. If Duris is any indication whatever for the date of the revolt, he leaves an open choice between the time of the war of 520 B.C. and that of the days of King Amphikrates; and as between these two the evidence shows that the earlier is probable while the latter is almost impossible. As independent evidence these hints would be of scarcely any value. As confirmation of a definite but disputable statement their value is considerable. [Sidenote: Summary of Pheidon’s activities according to Strabo (= Ephorus).]