Skene
Modern screenplays consist of dialogues among individuals. Ancient tragedy began as a conversation between a single actor and a chorus. A second and third actor were added -- eventually.
Skene, the Greek word from which we get the word scene, was originally a flat-roofed stage building.
Didaskalia says that Aeschylus'
Oresteia is the first extant tragedy to use the skene. In the fifth century, the skene was a non-permanent building placed at the back of the orchestra. It served as a backstage area. It could represent a palace or cave or anything in between and had a door from which actors could emerge.
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