It is at this point that Myres picks up the argument. Noting that thalassokratesai, “be a thalassocrat,” meaning “rule the waves,” was used in a number of authors: elsewhere by Diodorus, by Polybius, 2nd century BC historian, of Carthage, of Chios by Strabo, 1st century BC geographer and some others, he supposes that the source document might have been available to them all (but not necessarily, the cautious Myres points out). The document can be dated by its content: a list of 17 thalassocracies extending from the Lydian after the fall of Troy to the Aeginetan, which ended with the cession of power to Athens in 480 BC. The Battle of Salamis included 200 new Athenian triremes plus all the ships of its new ally, Aegina. Despite various revolts Aegina went on to become part of the Delian League, an imperial treaty of the new Athenian thalassocracy. Thucydides writes of it after 432 BC, but Herodotus, who visited Athens “as late as 444 B.C.” does not know a thing about it. This tentative date for the Eusebian list does not exclude the possibility of an earlier similar document used by Herodotus.