Western drama TV-Series originates in classical Greece. The theatrical culture of the city-state of Athens produced three genres of drama: tragedy, comedy, and the satyr play. Their origins remain obscure, though by the 5th century BC they were institutionalised in competitions held as part of festivities celebrating the god Dionysus. Historians know the names of many ancient Greek dramatists, not least Thespis, who is credited with the innovation of an actor who speaks and impersonates a character (rather than speaking in his own person), while interacting with the chorus and its leader, who were a traditional part of the performance of non-dramatic poetry (dithyrambic, lyric and epic).