During the archaic season (7th and 6th centuries BC) Fira is being linked with Crete and Paros initially, later with Attica, Corinthus, Rhodes and Ionia. This relation, however remain
surface, without be able to influence effectively the structure
of conservative society of residents and alter the cultural life
of the island. Frugal as they are, stays satisfy with what they get from the fertile ground of their island and
they avoid the marine "adventures".
From the 6th century BC Fira creates her own currency.
Two dolphins were the official emblem of the island (decoration).
In the years of the Persian Wars the mint of Fira closed and open again when the Athenian hegemony in the Aegean ended, around that is
to say in the means of 4th century BC. During the Peloponnesian War, as it was logical, Fira supported Sparta.
In the Hellenistic years the strategic place of the island in the
Aegean was in appreciated particularly by the Ptolemy.
The natural fortification of Mesa Vouno (In Mountain) and its framework by
two sandy beaches, suitable for anchorage, made Fira
precious naval and military base for the martial enterprises of
Successors in the Aegean.