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 religion Minoan icon such as the familiar serpent-goddess. However Μ. Nilsson proposed that the origin of the Greek goddess Athena was the Minoan snake-goddess, citing that Athena was closely related with snakes. Plutarch ("The Intelligence of Animals" 983) mentions the horn altar ("keraton") associated with Theseus, which survived on Delos: "I saw, the Altar of Horn, celebrated as one of the Seven Wonders of the World because it needs no glue or any other binding, but is joined and fastened together, made entirely of horns taken from the right side of the head." Minoan religion Minoan religion was the religion of