Book 7
1.5
At that time in the reign of Ion the Eleusinians made war on the Athenians, and these having invited Ion to be their leader in the war, he met his death in Attica, his tomb being in the deme of Potamus. The descendants of Ion became rulers of the Ionians, until they themselves as well as the people were expelled by the Achaeans. The Achaeans at that time had themselves been expelled from Lacedaemon and Argos by the Dorians.
1.6
The history of the Ionians in relation to the Achaeans I will give as soon as I have explained the reason why the inhabitants of Lacedaemon and Argos were the only Peloponnesians to be called Achaeans before the return of the Dorians. Archander and Architeles, sons of Achaeus, came from Phthiotis to Argos, and after their arrival became sons-in-law of Danaus, Architeles marrying Automate and Archander Scaea. A very clear proof that they settled in Argos is the fact that Archander named his son Metanastes ( settler).
1.7
When the sons of Achaeus came to power in Argos and Lacedaemon, the inhabitants of these towns came to be called Achaeans. The name Achaeans was common to them; the Argives had the special name of Danai. On the occasion referred to, being expelled by the Dorians from Argos and Lacedaemon, the Achaeans themselves and their king Tisamenus, the son of Orestes, sent heralds to the Ionians, offering to settle among them without warfare. But the kings of the Ionians were afraid that, if the Achaeans united with them, Tisamenus would be chosen king of the combined people because of his manliness and noble lineage.