Live theatre is drama’s oldest form, still borrowing Greek tools
Theatre gathers live performers and a live audience in one place to show real or imagined events. Film and recordings arrived later; Western stages still inherit Greek genres, terms, stock characters, and plot patterns even when the story is brand new.
Theatre is a shared art: living performers, usually actors, stand before a live audience in a particular place and convey real or invented events through some mix of gesture, speech, song, music and dance. Painted scenery and lighting amplify the sense of bodies present in the room. The building itself takes its name from the Greek théatron, a place for watching, rooted in a verb meaning to see. A theatre company is the organisation that mounts productions; a troupe is the band of performers who work together.
Today the art covers spoken plays and musical theatre, and ballet and opera count too, sharing acting, costume and staging conventions and feeding directly into how the musical developed. Recorded drama now sits alongside it, but live theatre remains the oldest dramatic form. Critic Patrice Pavis treats theatricality, stage writing and theatre's specificity as one idea: whatever separates it from literature and the other performing arts.
Western theatre began in Athens, inside a wider Greek culture of festivals, ritual, law courts, athletics, weddings and symposia. Citizens were expected to attend the City Dionysia, and speeches in court or assembly were judged like performances. Audiences of 10,000 to 20,000 filled semicircular hillside auditoria facing a dancing floor called the orchestra and a scene building, the skene. Only men acted, wearing masks and often doubling roles, and clear diction mattered because words carried the show.
Of more than a thousand tragedies staged in the fifth century BCE, only 32 survive, all by Aeschylus, Sophocles and Euripides. Playwrights competing at the Dionysia entered sets of three tragedies plus a satyr play. Aeschylus's The Persians, which won in 472 BCE, is the oldest drama still extant, and Aristophanes' eleven surviving plays preserve the Old Comedy.
Source: Theatre