Ancient Rhamnous Marathon. In the valley of Limikos at the northeastern end of Attica, next to the Evian gulf, the ruins of the ancient municipality of Ramnountos, which belonged to the Aiantida tribe and are preserved, consisted of many settlements. In this area is the famous sanctuary of Nemesis which is the most important sanctuary of the deity in Greece. The goddess is very similar to Artemis and may have represented a local figure. To make it his own, Zeus transformed into a swan while she had taken the form of a goose. After their union, Nemesis gave birth to an egg which was given to Leda who hatches through it the Beautiful Helen and the Dioscuri. The sanctuary in honor of Nemesis must have been founded at the beginning of the 6th c. e.g. Its acme is placed in the 4th and 5th c. e.g.