The names of the tribes were chosen to honor Macedonian king Demetrios Poliorketes and his father, Antigonos I Monophthalmos,[1] by adding them to the list of Eponymous Heroes of Athens, effectively making them into gods.
[2] While Athenians added the new phylai to the top of their list,[3] modern researchers use Roman numerals XI and XII to designate Antigonis and Demetrias respectively.
[3] While Demetrios fashioned his reforms as a return to the "ancient form of government", in fact it was a major revision of the two-hundred-years-old Kleisthenic order.
The legislative calendar was changed from ten prytanies to twelve, 40 days of the ekklesia duration were now divided into shorter segments, and the number of magistrates and members of the courts of law were proportionally increased.
[3] Traill (1975) suggests the use of "rule-of-three": phylai that gave up demes lost three of them each, with the largest ones making up for the omission of Aiantis by giving four (Aigeis) and five (Leontis).