History of the Cyclades have been found on Naxos. The operation of silver mines on Siphnos may also date to this period. At the end of the 19th century, the Greek archaeologist Christos Tsountas, having assembled various discoveries from numerous islands, suggested that the Cyclades were part of a cultural unit during the 3rd millennium BC: the Cycladic civilisation, dating back to the Bronze Age. It is famous for its marble idols, found as far as Portugal and the mouth of the Danube, which proves its dynamism. It is slightly older than the Minoan civilisation of Crete. The beginnings of the Minoan civilisation were
Minoan eruption a large earthquake and the fires it caused, which preceded the Thera eruption. Significant Minoan remains have been found above the Thera ash layer and tsunami level dating from the Late Minoan I era, and it is unclear whether the effects of the ash and tsunami were enough to trigger the downfall of the Minoan civilization. Some sites were abandoned or settlement systems significantly interrupted in the immediate aftermath of the eruption. As the Minoans were a sea power and depended on ships for their livelihood, the Thera eruption likely caused significant economic hardship to the Minoans. Whether the effects