The Mycenaean Greek history was split into two eras. It started in around 1600BC in the Shaft Grave Era that ended in 1450BC at the collapse of the Minoan civilisation. The Shaft Grave period was when MycenaeanGreeks were the underdogs in the Aegean world with the Minoans ruling the seas while the Mycenaeans were minor trade partners. While on land they lived in simplistic citadels and they were influenced by the Minoan in ships, palaces and writing. The elite were buried in elegant shafts dug into the ground with great treasures. After the eruption of the volcanic island Theya, the Minoan civilization went into a steep decline and the with the loss of the sea domination and no army to speak of, they were quickly conquered by the militarisedMycenaeans. This started the Koine era, which was their hay day. From 1450 to 1250 they ruled the seas, built giant palaces, and fought great wars. But in 1250 the troubles started when most palaces were destroyed by natural disasters and unknown armies. However, they repaired the palaces and although they lost mastery of the sea to the sea people, they carried on until 1100 BC, when all palaces were destroyed or abandoned.