Eleusis was founded around 2000 B.C. , 20 km outside of Athens. Because of its advantageous location, Eleusis quickly developed into a very powerful and fortified city.

Eleusis was one of the 5 sacred cities of Ancient Greece and is most known of being a worship place of the Greek goddess Demeter, the goddess of vegetation. The "Eleusinian mysteries" in honor of Demeter were performed for over two thousand years.