"The Crucible" uses its plot to parallel the events of the witch trials. The hysteria, accusations, and manipulation that occur in the play reflect the real-life events that took place in Salem. The play's characters also represent different aspects of the society and political climate during that period. For example, John Proctor's character represents those who try to stand up against injustice but are ultimately defeated by the oppressive forces.
Furthermore, the play explores themes of mass hysteria, guilt, and the dangers of unchecked power. These themes are closely related to the historical events in Salem, where innocent people were accused and convicted based on false evidence and unsupported claims.
Therefore, "The Crucible" is considered an allegory as it uses its plot, characters, and themes to create a symbolic representation of the societal, political, and historical context of the Salem witch trials.