Epic theatre (episches Theater) is a theatrical movement arising in the early to mid-20th century from the theories and practice of a number of theatre practitioners who responded to the political climate of the time through the creation of new political dramas. Epic theatre is not meant to refer to the scale or the scope of the work, but rather to the form that it takes. Epic theatre emphasizes the audience's perspective and reaction to the piece through a variety of techniques that deliberately cause them to individually engage in a different way. The purpose of epic theatre is not to encourage an audience to suspend their disbelief, but rather to force them to see their world as it is. The term "epic theatre" comes from Erwin Piscator who coined it during his first year as director of Berlin's Volksbühne (1924–27). Piscator aimed to encourage playwrights to address issues related to "contemporary existence." This new subject matter would then be staged by means of documentary effects, audience interaction, and strategies to cultivate an objective response. Epic theatre incorporates a mode of acting that utilises what Brecht calls gestus. One of Brecht's most-important aesthetic innovations prioritised function over the sterile dichotomous opposition between form and content. Epic theatre and its many forms is a response to Richard Wagner's idea of "Gesamtkunstwerk", or "total artwork", which intends each piece of art to be composed of other art forms. Since epic theatre is so focused on the specific relationship between form and content, these two ideas contradict each other, despite the fact that Brecht was heavily influenced by Wagner. Brecht discussed the priorities and approach of epic theatre in his work "A Short Organum for the Theatre". Although many of the concepts and practices involved in Brechtian epic theatre had been around for years, even centuries, Brecht unified them, developed the approach, and popularised it. Near the end of his career, Brecht preferred the term "dialectical theatre" to describe the kind of theatre he pioneered.