What is the term for a section of drama that depicts an event from the past?

The term that refers to a section of drama depicting an event from the past is a flashback. Flashbacks are used to provide background information about characters or situations, enhancing the audience's understanding of the narrative. This technique allows playwrights to reveal crucial elements of a character's history or significant events that have shaped the present storyline.

In contrast, options like flashforward refer to scenes that take the audience into the future, while tableau or frozen picture is a dramatic technique where actors hold a still image to signify a moment, and a monologue is a speech delivered by a single character that reveals their thoughts or feelings. Each of these terms occupies a different role within the structure of drama, but none serve the same function as a flashback in conveying past events.