Some of the earliest forms of drama come from ancient Greece. Sophocles' Oedipus Rex is a great example of ancient Greek tragedy, Shakespeare's Hamlet is the example of the drama of the Elizabethan period, and Samuel Beckett's Waiting for Godot represents the drama of the 20th century and belongs to the so-called. Theater of the absurd. Since all these dramas come from different time periods, it is natural that they differ from each other in many aspects. Greek tragedy has unity of time, place, and action, as it takes place all in one day, takes place in a single scene, and develops a single plot. In Hamlet this rule is broken. The action takes place in the garden, in the castle, in the cemetery. The work has no time unity and has many plots. In Waiting for Godot, however, we see a strict adherence to the three units. The unit of time is two days and the action is set in a single place, where Vladimir and Estragon await Godot. In ancient drama, the character is often of noble origins and holds an important social position. At the same time, he is the tragic hero and every decision he makes will lead to personal catastrophe. An ancient main character is a victim of tragic irony. A hero commits a crime without knowing it. He suffers a grave misfortune that is not accidental and meaningless, but is significant and logically connected to his actions. A character in ancient drama is not extensively developed psychologically. We do not have a complete picture of King Oedipus' personality. We have very little information on his appearance; his actions and words tell us nothing about his emotions. In contrast, we know a lot about Hamlet's emotions and feelings. Unlike Greek tragedy, the hero of modern drama is often a commoner, not of noble birth. Modern drama such as “Waiting for Godot” shows the tragedy not of the strong and noble character, but of the weak and mean. The basic structure of ancient drama has to do with the concept of myth. The stories were based on myth or history. The moral of this type of myths was that the beginning and end of human life must be in the hands of God alone. The ancient Greeks believed that some human beings could be forced by fate to act wrongly, even if they did not want to.