Around 1550 BC, Mycenae came to dominate the rest of Greece; this period is called the Mycenaean civilization, which was dominated by the warrior aristocracy.
Around 1400 BC, the Mycenaeans conquered the Minoans, adopting their syllabary (now called Linear A) to write their own language (Greek, the new syllabary known as Linear B).
Around 1100 BC, it is thought that the Dorians attacked Greece from the north while the Sea People attacked from the sea.