Cleisthenes

Type Figure Region Attica Time c. -570–-508 Also known as Cleisthenes、Kleisthenes、Κλεισθένης、克利斯提尼

Cleisthenes (c. 570–508 BCE) was an Athenian politician and reformer who replaced kinship tribes with territorial ones, expanded citizen participatio…

Timeline

c. -570–-510Athens · AthensCleisthenes came from the Alcmaeonid family; after the tyrant Hippias was expelled he contested leadership with Isagoras, was at one point forced into exile, and later returned to Athens through the situation at Delphi and Sparta.
-508–-507Athens · AthensCleisthenes introduced ten territorially based tribes, the Council of Five Hundred, and reforms to the Assembly, and established ostracism to guard against the return of tyrants, laying the framework of Athenian democratic institutions.

Sources

Cleisthenes of Athens https://www.britannica.com/biography/Cleisthenes-of-Athens
Athenian Constitution — Pseudo-Aristotle