structural:summarization
Theatre

Theatre performances, typically dramatic or musical, are presented on a stage for an audience and have a history that goes back to Hellenistic times when "leading musicians and actors" performed widely at "poetical competitions", for example at " Delphi, Delos, Ephesus ". Aristotle and his teacher Plato both wrote on the theory and purpose of theatre. Aristotle posed questions such as "What is the function of the arts in shaping character? Should a member of the ruling class merely watch performances or be a participant and perform? What kind of entertainment should be provided for those who do not belong to the elite?" The "Ptolemys in Egypt, the Seleucids in Pergamum " also had a strong theatrical tradition and later, wealthy patrons in Rome staged "far more lavish productions".

Expectations about the performance and their engagement with it have changed over time. For example, in England during the 18th century, "the prejudice against actresses had faded" and in Europe generally, going to the theatre, once a socially dubious activity, became "a more respectable middle-class pastime" in the late 19th and early 20th centuries, when the variety of popular entertainments increased. Operetta and music halls became available, and new drama theatres such as the Moscow Art Theatre and the Suvorin Theatre in Russia opened. At the same time, commercial newspapers "began to carry theatre columns and reviews" that helped make theatre "a legitimate subject of intellectual debate" in general discussions about art and culture. Audiences began to gather to "appreciate creative achievement, to marvel at, and be entertained by, the prominent 'stars'." Vaudeville and music halls, popular at this time in the United States, England, Canada, Australia and New Zealand, were themselves eventually superseded.

Plays, musicals, monologues, pantomimes, and performance poetry are part of the very long history of theatre, which is also the venue for the type of performance known as comedy. In the 20th century, radio and television, often broadcast live, extended the theatrical tradition that continued to exist alongside the new forms.

The stage and the spaces set out in front of it for an audience create a theatre. All types of stage are used with all types of seating for the audience, including the impromptu or improvised; the temporary; the elaborate; or the traditional and permanent. They are erected indoors or outdoors. The skill of managing, organising and preparing the stage for a performance is known as stagecraft. The audience's experience of the entertainment is affected by their expectations, the stagecraft, the type of stage, and the type and standard of seating provided.