http://agathe.gr/democracy/tyranny.html
Tyranny As happened in many other Greek states, a tyrant arose in Athens in the 6th century B.C. His name was Peisistratos, and after several unsuccessful attempts he seized power in 546 B.C. and ruled ... (Athenian Constitution 16.7-9) That Peisistratid rule was surprisingly open is borne out by a fragment of a list of archons which shows that in 524 B.C. the future founder of democracy, Kleisthenes himself, held the chief magistracy while the tyrants were still in power, as did another rival aristocrat, Miltiades. ... No traces remain of the altar itself, but excavation has revealed a foundation of squared blocks supporting a low sill of limestone blocks with the marks of a stone fence on the upper surface which formed the altar enclosure. ... A woman waits for it to fill while another woman goes off with her jar full.