The three extant plays in Aeschylus' Orestaia trilogy - Agamemnon, Libation Bearers, and Eumenides - form one of the cornerstones of western literature. Written in 5th century BCE Athens, they tell the story of a family, in which Fate and the Gods decree that each generation repeat the crimes and endure the suffering of their forebears. All classical Greek drama was, in some way, political and these are no exception, showing how, with the help of Athena a new system of laws, determined by men, can halt the never-ending cycles of violence.
Some of the poetry is stunning. And from the outset, we are in a solid, real world with the watchman of Argos complaining about his boring lot, before he sees the beacon which indicates that Troy has fallen and his King, Agamemnon, is returning home. Eumenides is the play which opens in Delphi at the Temple of Apollo and it is this play that moves the audience away from the brutality of blood vengeance towards justice, and contains what I think is the first representation of a jury trial in western literature. I tried to capture that juxtaposition in Oracle too.