This document discusses Aristotle's three unities of drama: unity of action, place, and time. It provides examples of plays that follow each unity and defines what each unity entails. The unity of action means a play should have one main plotline. Unity of place means a play should take place in one physical location. Unity of time means the action of a play should occur within a 24-hour period. The document also discusses John Dryden's view that the unities were too restrictive and prevented plays from accurately portraying human nature.