Explain three unities related to Oedipus Rex.

The unities of time, place, and action were derived from Aristotle's
Poetics by an Italian theorist, Lodovico Castelvetro, in 1570.

In Poetics, Aristotle proposes the unities of time and action
(unity of place isn't mentioned in Poetics) as guidelines rather than
actual rules, which are based on what Aristotle observed in Greek tragic playsnot what he
intended to impose on the writing of tragic plays. Castelvetro and French classical playwrights
like Pierre Corneille, Jean Racine and Jean-Baptiste Poquelin (better known as Moli¨re)
interpreted these observations as requirements and adhered to these unities in their
plays.

According to Castelvetro, the unity of time imposed a twenty-four hour
time limit on the action of the play, the unity of place meant that the action of the play
should occur in a single location, and the action of the play be restricted to a single, unified
plot line:

endeavors, as far as possible, to confine
itself to a single revolution of the sun, or but...