It would appear that Homer sang before the northern invasion, usually called "Dorian," caused the Achaean and Ionian migrations from the Greek mainland, and the Greek settlements on the Asiatic coast (950-900 B.C.?). He never alludes to these events, but it may be said that he deliberately conceals them. The account which Homer gives of the Achaean heroes and their realms is to be found in the Catalogue of the Ships in Book ii., a passage of three hundred lines. It is, perhaps, not very probable that this long list was usually recited at popular gatherings, and there is much dispute as to its date and purpose. We relegate to an appendix some remarks on the debated questions. Whether the Catalogue, or most of it, was part of the original _Iliad_ or not, most of it was certainly composed at a time when the condition of prehistoric Greece was well known, when a lively tradition of its divisions still existed; moreover, it is the work of a poet, and Milton deemed it worthy of imitation in _Paradise Lost_. The Catalogue was omitted from many manuscripts of the _Iliad_, probably because it was thought tedious reading. But to us there is poetry in the very names of "rocky Aulis," and "Mycalessus of the wide lawns," and "dove-haunted Thisbe," and "Lacedaemon lying low among the rifted hills." The author wrote "with his eye on the object," and the doves of Thisbe have survived many empires and religions, still floating round their old domains and uttering their changeless note.[9] "Pleasant Titaresius" still mingles his clear waters with the chalk-stained Peneius, and Celadon brawls as when Nestor heard its music. The Catalogue enumerates all the Achaeans; Boeotians, Phocians, Minyans; light-armed Locrian slingers; the Abantes of Euboea, fond of close combat; the Arcadians, whose dialect was nearest akin to Homer's own language, but who take no part in the action; the Epeians of Elis, once foes of Nestor's Pylians; the far-off Aetolians, no longer led by golden-haired Meleager; the Cretans of Cnossos, under Idomeneus, grandson of Minos; his neighbour Tlepolemos of Rhodes, of the blood of Heracles, and probably a Dorian, though the Dorian name is not uttered; and some of the Sporades. There are, too, the south Thessalian Achaeans and Hellenes, the Myrmidons under Achilles; the men of Philoctetes, who lies sore hurt by a serpent's bite in the Isle of Lemnos; the descendants in Thessaly (not a Homeric name) of the Lapithae; the Pethraebians from "wintry Dodona"; the men of Argos and Tiryns of the mighty walls, under Diomede; the men of Lacedaemon under Menelaus; the Athenians (much suspected of interpolating their own mention), Odysseus of the western and Aias of the eastern isles (Ithaca and Salamis); and the host of Agamemnon, lord of Corinth, Sicyon, and Mycenae, himself the Over Lord of all.