Oedipus at Colonus sons, in the end Oedipus is accepted and absolved by Zeus. In the years between the play's composition and its first performance, Athens underwent many changes. Defeated by the Spartans, the city was placed under the rule of the Thirty Tyrants, and the citizens who opposed their rule were exiled or executed. This certainly affected the way that early audiences reacted to the play, just as the invasion of Athens and its diminished power surely affected Sophocles as he wrote it. The play contrasts the cities of Athens and Thebes quite sharply. Thebes is often used in Athenian dramas as
Oedipus Rex has been fulfilled. Oedipus, King of Thebes, sends his brother-in-law, Creon, to ask advice of the oracle at Delphi, concerning a plague ravaging Thebes. Creon returns to report that the plague is the result of religious pollution, since the murderer of their former king, Laius, has never been caught. Oedipus vows to find the murderer and curses him for causing the plague. Oedipus summons the blind prophet Tiresias for help. When Tiresias arrives he claims to know the answers to Oedipus's questions, but refuses to speak, instead telling him to abandon his search. Oedipus is enraged by Tiresias' refusal, and