A group of Athenian exiles, led by
Thrasybulus, seized Phyle in the 404 BC
Battle of Phyle. They went on to defeat the Spartan garrison at the
Battle of Munichia near
Piraeus. The medieval name Chasia is first attested in 1209 as , as property of the
Latin Archbishopric of Athens. The town is mentioned as Haşa in the
Seyahatnâme of
Evliya Çelebi which he visited in 1668. He mentions that it is and Arvanite village with 100 houses and that 50 houses of the village are tax-exempt because they are tasked to protect the mountain pass. The village has historically been an
Arvanite settlement. Fyli suffered some damage from the
2007 and the
2023 forest fires. == Geography ==