After the Persian wars, the predominance of Athens led to the transformation of the Delian amphictyony into the Athenian empire.
At this time the amphictyony is known to have embraced both the Athenians and the inhabitants of the Cyclades; but a strong Delian party bitterly opposed Athenian rule (cf.
The name of the council (pylaea) and of one set of deputies (pylagori), together with the important place held in the amphictyony by the temple of Demeter at Anthela, near Thermopylae, suggests that this shrine was the original centre of the association.
The word itself indicates that the association primarily comprised neighbours, though the Delphic amphictyony came in time to include relatively distant communities (Strabo ix.
In the later 4th century the name survives only (a) as a geographical expression for part of the coast of Asia Minor, (b) in European Greece as the name of that section of the Northern Amphictyony in which Athens and its colonies were reckoned.
The dissolution of the amphictyony soon followed.
In the following century the Aetolians gained such dominance in the amphictyony as to convert the council into an organ of their league.
In addition to the three associations thus far mentioned there was an amphictyony of Onchestus (Strabo ix.
The Delian amphictyony probably reached the height of its splendour early in the 7th century B.C. The Hymn to the Delian Apollo, composed about that time, celebrates the gathering of the Ionians with their wives and children at the shrine of their god on the island of Delos, to worship him with music, dancing and gymnastic contests (vv.
Under the dominion of the Roman republic its national league was dissolved, but was revived by Augustus, who also restored to Phocis the votes in the Delphic Amphictyony which it had lost in 346 and enrolled it in the new Achaean synod.