Even more characteristic perhaps is the account of the migration of the Bœotians. According to Homer, Cadmeans lived in Thebes, Minyæ in Orchomenos. Hence it followed that the Bœotians must have immigrated after the Trojan War, like the Thessalians. But a great many Thessalian names of places and religious practices occur in Bœotia. Hence nothing was more simple than to make the Bœotians immigrate from Thessaly, thus at the same time explaining what had become of the original inhabitants of Thessaly after the influx of Thessalians. To be sure this original population, as represented by the serfs (
The migration of the Eleans is a similar case. Elis is an old district name, consequently no Eleans can ever have existed outside of Elis. But Homer mentions the Epeans as being inhabitants of the country; consequently it was stated that the Eleans did not enter the Peloponnesus until after the Trojan War, and that they came from Ætolia, where Oxylus, the mythical ancestor of the Elean royal house, was also worshipped as a hero. According to an opposite version Ætolia was settled by emigrants from Elis; and these two views were then combined, and the Eleans were made first to move to Ætolia and then, after ten generations, to move back again. As a matter of fact the Homeric Epeans are nothing else than the inhabitants of Epea in Triphylia, whose name was extended to include the inhabitants of the surrounding districts, like the name of the neighbouring Pylians, since the knowledge of the Ionic rhapsodists concerning the western part of the Peloponnesus is very scanty.
Further, since Homer knows of no Dorians in the Peloponnesus, it was clear that the peoples inhabiting Argolis and Laconia in historic times could have come in only after the Trojan War; it remained only to discover from whence. This was not difficult; there was in the middle part of Greece, between Œta and Parnassus, a small mountainous district whose inhabitants were called Dorians, quite like the Grecian colonists on the Carian coast. This is not at all remarkable, since in a widely extended linguistic territory the same local names must necessarily recur in different places, as may be seen from any topographical dictionary. Such homonyms by no means prove an especially close relationship between the inhabitants of such localities; in the formation of Greek racial tradition, however, they have played an important part.
The home of the Dorians was in this way established. People now wanted to know the reason which had led them to seek new abodes so far away. In close connection with this was the question as to how the descendants of Hercules had come to reign over Argos, Sparta, and Messene. The answer was given by the tradition of the return of the Heraclidæ. Hercules, it was related, had belonged to the royal family of Argos, but had been robbed of his rights to the throne and had died in exile; his sons, or grandsons as was stated later for chronological reasons, had made good their rights with the aid of the Dorians and had also established the claims which Hercules had to dominion over Laconia and Messenia. The regained lands were divided under the three brothers Temenus, Cresphontes, and Aristodemus, or between the twin sons of the latter, Procles and Eurysthenes. This was a tradition which could be put to admirable political use. Supported by this title, Argos could claim the hegemony over the whole of Argolis; Sparta could justify the subjection of the small cities of Laconia and Messenia. That was why this tradition, once come into existence, was quickly circulated and officially recognised.
But the mention of Messenia shows that we are here dealing with a comparatively recent stage in the growth of tradition, since this region could not be claimed as a heritage by the Heraclidæ until after the Spartan conquest between the eighth and seventh centuries.