
244 7 MACEDONIA AND GREECE
to Nicocles and might therefore be willing to give support to the son of
Cleinias. But when this was not forthcoming, he decided to act alone,
and in May 251 by a daring coup carried out with the help of
a
private
band of troops, he seized Sicyon; the tyrant fled and the liberators
confiscated his property. The liberation of Sicyon was a signal for nearly
600 exiles, victims of Nicocles or of earlier tyrants, to return home, and
faced with serious social and economic problems arising out of this
Aratus took the bold and, as it proved, far-reaching step of uniting
Dorian Sicyon to the Achaean League. His aim was to acquire for Sicyon
the strength and stability that would come from belonging to a larger
body; but the accession of Sicyon to the Achaean League was to prove
the first move towards the transformation of an ethnic confederacy into
a large body which was ultimately to embrace virtually the whole of the
Peloponnese. How far it was the return of
the
exiles which led Aratus to
take this step is not recorded; but insofar as they were all presumably
enemies of tyranny, their restoration cannot have pleased Antigonus,
who is indeed reported as eyeing Aratus with dislike because of the
liberation of Sicyon.
The Achaean League had only recently been reconstituted. After
being active as a federal body in the fifth century it had fallen into some
obscurity from around the middle of the fourth century and little is
recorded of its activities at that time. In 280, however, the cities of
Dyme, Patrae, Pharae and Tritaea came together, and in 275/4 Aegium,
which controlled the federal shrine of Zeus Homarios, rejoined the
confederacy, followed shortly afterwards by Bura, Ceryneia (both of
which had been under tyrants), and, it would appear, Leontium, Aegeira
and Pellene; an inscription (SEG 1.74) also shows Olenus joining as an
eleventh member after 272, but by the time Polybius was writing that
city no longer existed. Originally the revived league elected two generals
annually, but in 255/4 the constitution had been changed to provide for
the appointment of a single annual general, who entered office in May
and who might not be elected in two consecutive years; this move, for
which the Aetolian League was perhaps the model, made for greater
efficiency while maintaining safeguards against a concentration of too
much power in one man's hands. The first holder of
the
single office was
Margus of Ceryneia, a man clearly most influential in the early years, but
who then lapses into obscurity until Polybius reports his death in action
in 229.
Originally meetings of the League had taken place at the shrine of
Zeus Homarios outside Aegium; but from 255 onwards the assembly
met in the city of Aegium. According to Polybius (11.37.9-11) the
Achaeans had 'the same laws, weights, measures and coinage as well as
the same magistrates, council-members and judges'; but there is some
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