↑Although Sophocles won second prize with the group of plays that included Oedipus the King, its date of production is uncertain. The prominence of the Theban plague at the play's opening suggests to many scholars a reference to the plague that devastated Athens in 430 BCE, and hence a production date shortly thereafter. See, for example, Knox, Bernard (1956). "The Date of the Oedipus Tyrannus of Sophocles". American Journal of Philology77 (2): 133–147.
↑It is widely argued that Aristotle in his Poetics identifies Oedipus the King as the best Greek tragedy. See, for example, Belfiore, Elizabeth (1992). Tragic Pleasures: Aristotle on Plot and Emotion, 176.