Realism emerged in European theatre during the mid-19th century, challenging stylized conventions. It aimed to depict everyday life truthfully, focusing on contemporary social issues and ordinary people's struggles. This movement coincided with the rise of the middle class and Industrial Revolution. Key characteristics included natural dialogue, complex characters, and realistic sets. Influential playwrights like Ibsen, Strindberg, and Chekhov explored themes of class, gender, and morality. Realism's impact extended beyond theatre, influencing social reform movements and other art forms.