Leaf suggests[16] that the Dorians may have followed methods of conquest similar to those of the Achaeans, yet he has no doubt that they were identical in social organisation with the Pelasgians.[17] ‘Hellenism as we know it,’ he says, ‘is founded on tribal distinctions, beginning with the great racial divisions of Dorian, Ionian, and Aeolian in the wide sense—the general name for all which did not belong to the other two;—passing thence to the local state, Athenian, Spartan and the rest. Each of these again is divided internally by tribe, clan, and family systems of the most complicated nature. Upon these ramifying subdivisions is based the polity, and largely the religion, of classical Greece.’ This statement is of first-rate importance for our theories concerning post-Homeric homicide. It means, in effect, that, in spite of conflicts and migrations, the dominant Hellenic or post-Homeric Greek society was based on clan and tribal organisations similar to those of the early Pelasgians. The militarist Achaeans of the _Iliad_ and the _Odyssey_ must then be regarded as a solitary accidental ephemeral phantom which crossed the stage of Grecian history never to return. The Achaeans who survived the invasions either remained in isolated groups as in Achaea and in South Thessaly, where they seem to have preserved for a time their military character,[18] though they may, in course of centuries, have evolved the mechanism of clan life: or they became subject Perioeci, and were rapidly merged in tribal organisations, or they were accepted as partners in government, as at Sparta, at Argos, at Corinth, and at Sicyon, and, like the Roman _Patres minorum gentium_, developed along the lines of tribal society. Their peculiar Homeric character disappeared: they were Hellenised—which is to say, with Leaf,[19] that they were ‘drawn into’ the ‘group-system,’ which, after Homer, ‘resumed its sway.’