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 larger myth obliquely, which was already known to the audience in Athens at the time. The trilogy containing "Oedipus Rex" took second prize in the City Dionysia at its original performance. Aeschylus's nephew Philocles took first prize at that competition. However, in his "Poetics", Aristotle considered "Oedipus Rex" to be the tragedy which best matched his prescription for how drama should be made. Many modern critics agree with Aristotle on the quality of "Oedipus Rex", even if they don't always agree on the reasons. For example, Richard Claverhouse Jebb claimed that "The "Oedipus Tyrannus" is in one sense the masterpiece