Explanation.

Periclymenus was the son of Neleus and Chloris, as we are told by Homer, Apollodorus, and other authors. According to these authors, Neleus, king of Orchomenus, was the son of Neptune, who assumed the form of the river Enipeus, the more easily to deceive Tyro, the daughter of Salmoneus. Neleus married Chloris, the daughter of Amphion, king of Thebes, who bore him eleven sons and one daughter, of which number, Homer names but three. Periclymenus, the youngest of the family, was a warlike prince, and, according to Apollodorus, accompanied Jason in the expedition of the Argonauts. Hercules, after having instituted the Olympic games, marched into Messenia, and declared war with Neleus. The ancient writers differ as to the cause of this expedition; but they agree in stating, that Hercules made himself master of Pylos, a town which Neleus had built, as a refuge from the capricious humours of his brother Pelias; and that Neleus and all his children were killed, except Nestor, who had been brought up among the Geranians, and who afterwards reigned in Pylos. The story which here relates how Periclymenus transformed himself into an eagle, and was then killed by Hercules, may possibly mean, that having long resisted the attacks of his formidable enemy, he was at length put to flight, and slain by an arrow. It is said that Neptune had given him the power to metamorphose himself into different figures, very probably because his grandfather, who was a maritime prince, had taught him the art of war and various stratagems, which he industriously made use of, to avert the ruin of his family.

In relation to the story of the death of Achilles, Dictys the Cretan tells us, that Achilles having seen Polyxena, the daughter of Priam, along with Cassandra, as she was sacrificing to Apollo, fell in love with her, and demanded her in marriage and that Hector would not consent to it, except on condition of his betraying the Greeks. This demand, so injurious to his honour, provoked Achilles so much, that he forthwith slew Hector, and dragged his body round the walls of the city. He further says that when Priam went to demand the body of Hector, he took Polyxena with him, in order to soften Achilles. His design succeeded, and Priam then agreed to give her to him in marriage. On the day appointed for the solemnity in the temple of Apollo, Paris, concealing himself behind the altar, while Deiphobus pretended to embrace Achilles, wounded him in the heel, and killed him on the spot, either because the arrow was poisoned, or because he was wounded on the great tendon, which has since been called ‘tendon Achillis,’ a spot where a wound might very easily be mortal.

This story of the death of Achilles does not seem to have been known to Homer; for he appears, in the twenty-fourth book of the Odyssey, to insinuate that that hero died in battle, fighting for the Grecian cause.

After his death Achilles was honoured as a Demigod, and Strabo says that he had a temple near the promontory of Sigæum. Pausanias and Pliny the Elder make mention of an island in the Euxine Sea, where the memory of Achilles was expressly honoured, from which circumstances it had the name of Achillea.