The Dark Ages. After the collapse of the Mycenaean civilization, Greece entered a bleak period that lasted for 300 years (1100 BCE-800 BCE) New raiding parties arrived from the North (The Dorians)- they forced the Greek-speaking people all around the Aegean Sea. Key Points About the Dark Ages.
As the Greek population started to grow, it began to put a strain on their food supply.
The use of metal currency, a new middle class, and the use of iron