It is probable that the island was not dorized before the 9th century B.C. One of the earliest facts known to us in its history is its membership in the League of Calauria, which included, besides Aegina, Athens, the Minyan (Boeotian) Orchomenos, Troezen, Hermione, Nauplia and Prasiae, and was probably an organization of states which were still Mycenaean, for the suppression of the piracy which had sprung up in the Aegean as a result of the decay of the naval supremacy of the Mycenaean princes.
Minyan immigrants then settled at various places on the coast and even appear to have penetrated into the interior and to have founded Amyclae.
At this festival it was originally the custom for the priest of the god to pursue a woman of the Minyan family with a drawn sword and kill her.
South-eastern Greece and the Peloponnesus show (in their sequence of pottery fabrics): (i.) An Early Bronze Age culture (black-varnish ware, Urfirnis) similar to that of the Cyclades and Crete but of meaner development, which was dominated in turn by (ii.) its more progressive neighbours of the Cyclades (dull-paint ware, Mattmalerei) and perhaps of Asia (Minyan ware), and ultimately (iii.) of Crete (Mycenaean).
Then came an Aeolo-Minyan immigration, which apparently extended to Messenia, though the Pylos of Nestor almost certainly lay in Triphylia, and not at the site which in historic times bore that name.
But if we assume that he was the aboriginal Hellenic High God, we must be quite ready to admit that the separate communities were always liable to cherish other divinities with a more ardent and closer devotion, whether divinities that they brought with them or divinities that they found powerfully established in the conquered lands, Athena or Hera, for instance, in Attica or Argolis, or Poseidon in the Minyan settlements.