Aeschylus

Athenian tragic playwright who fought at Marathon and wrote the Oresteia — the only surviving complete Greek trilogy — whose work presents justice as the evolution from blood vengeance to civic law, under the guidance of Athena.

Created the tragic trilogy form and the theological framework in which justice is not divine vengeance but the establishment of civic institutions — the Oresteia's resolution in Athena's court establishes the rule of law as the civilizing achievement that transforms blood feuds into justice.