What were the three main Greek periods in history?

Bronze Age Greece: 2800 - 1100 BC

Includes: Minoan Civilization on Crete (2800-1450 BC)

Mycenaean Civilization on mainland Greece (1600-1100 BC)

Dark Ages: 1200-800 BC

Ancient Greece: 800 BC - 146 BC

Includes: Archaic Greece (800-510/480 BC)

Classical Greece (510-323 BC)

Hellenistic Greece (323-146 BC)

Followed by Roman conquest, and later under the thumb of the Byzantine Empire.