http://agathe.gr/democracy/the_ten_new_tribes.html
The Ten New Tribes Kleisthenes instituted a crucial reform, the reorganization of the citizenry into new administrative units called phylai (tribes). In his attempt to break up the aristocratic power structure, ... The Eponymous Heroes were Hippothoon, Antiochos, Aias, Leos, Erechtheus, Aigeus, Oineus, Akamas, Kekrops, and Pandion. By the late 5th century a long base had been set up in the Agora to display statues of all ten heroes.