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 volcano, which erupted and then collapsed in an ongoing cyclical process. Immediately before the Minoan eruption, the walls of the caldera formed a nearly continuous ring of islands with the only entrance between Thera and the tiny island of Aspronisi. This cataclysmic eruption was centered on a small island just north of the existing island of Nea Kameni in the centre of the then-existing caldera. The northern part of the caldera was refilled by the volcanic ash and lava, then collapsed again. Research by a team of international scientists in 2006 revealed that the Santorini event was much larger than