Crete was the centre of Europe's most ancient civilization, the Minoans. Tablets inscribed in Linear A have been found in numerous sites in Crete, and a few in the Aegean islands. The Minoans established themselves in many islands besides Ancient Crete: secure identifications of Minoan off-island sites include Kea, Kythera, Milos, Rhodes, and above all, Thera (Santorini).
Archaeologists ever since Sir Arthur Evans have identified and uncovered the palace-complex at Knossos, the most famous Minoan site. Other palace sites in Crete such as Phaistos have uncovered magnificent stone-built, multi-story palaces containing drainage systems, and the queen had a bath and a flushing toilet. The expertise displayed in the hydraulic engineering was of a very high level. There were no defensive walls to the complexes. By the 16th century BC pottery and other remains on the Greek mainland show that the Minoans had far-reaching contacts on the mainland. In the 16th century a major earthquake caused destruction on Crete and on Thera that was swiftly repaired.
By about the 15th century BC a massive volcanic explosion known as the Minoan eruption blew the island of Thera apart, casting more than four times the amount of ejecta as the explosion of Krakatoa and generating a tsunami in the enclosed Aegean that threw pumiceup to 250 meters above sea level onto the slopes of Anaphi, 27 km to the east. Any fleet along the north shore of Crete was destroyed and John Chadwick suggests that the majority of Cretan fleets had kept the island secure from the Greek-speaking mainlanders. The sites, save Knossos, were destroyed by fires. Mycenaeans from the mainland took over Knossos, rebuilding some parts to suit them. They were in turn subsumed by a subsequent Dorian migration.