History of the Cyclades Roman province. Under Diocletian, there existed a “province of the islands” that included the Cyclades. Christianisation seems to have occurred very early in the Cyclades. The catacombs at Trypiti on Milos, unique in the Aegean and in Greece, of very simple workmanship, as well as the very close baptismal fonts, confirms that a Christian community existed on the island at least from the 3rd or 4th century. From the 4th century, the Cyclades again experienced the ravages of war. In 376, the Goths pillaged the archipelago. When the Roman Empire was divided, control over the Cyclades passed to the Byzantine
History of the Cyclades cooled, going so far as to stop (as indicated by the disappearance of Mycenaean objects from the corresponding strata on the islands). Moreover, some island sites built fortifications or improved their defenses (such as Phylakopi, but also Aghios Andreas on Siphnos and Koukounaries on Paros). Relations were resumed during Late Helladic III C. To the importation of objects (jars with handles decorated with squids) was also added the movement of peoples with migrations coming from the continent. A beehive tomb, characteristic of continental Mycenaean tombs, has been found on Mykonos. The Cyclades were continuously occupied until the Mycenaean civilisation began