Again, the wider kinship-groups of the φρατρίαι and γένη are obviously pre-Homeric, and doubtless these had been consecrated by aboriginal religion, though we cannot date precisely the emergence of such cult-forms as Zeus Φράτριος and Athena Φρατρία, the deities who were specially concerned with the constitution and rights of the kindred-group. _Political religion_.--Further, it is fairly clear that already in this first stage the religion had become closely interfused with the higher political and social life. Although the greater part of the population lived still under the tribal system in scattered villages--κωμηδόν--yet the ‘polis’ had already arisen; and in certain cases we may surmise for it a religious origin, where its name is derived from the personal name or the shrine of some divinity. Examples are ‘Athenai,’ Alalkomenai, Potniai, perhaps Megara. In these cases the temple must have been the nucleus around which grew up the secular habitations; and the deity of the temple would become supreme in the political religion. {28} Athena had won this position at Athens and probably elsewhere in the immemorial pre-Homeric past; and this explains her character in the Homeric poem as the divinity who more than all others inspires political wisdom and counsel. Various indications point in fact to the belief that the earliest development of the city life was closely bound up with the cults of Zeus and Athena; for no other divinity was ever styled Polieus or Polias by any Greek State; and this agrees mainly with the presentation of them in the Homeric poems. The unanimity of the tradition points back to the second millennium, as the period when this political characterisation of the two deities was determined. And this view is strikingly confirmed by the records concerning the ritual and the establishment of the cult of Zeus ‘Polieus’ on the Athenian Akropolis, an institution attributed to Kekrops and marking probably the Hellenisation of Attica; the singular features of the ritual and the association preserved in its legend of Attica with Crete indicate a high antiquity, when agriculture was the economic basis of the political as well as the religious life.