Box set (theatre)

[1] Box sets are traditionally attributed to Elizabeth Vestris with the Victorian farce London Assurance by Dion Boucicault.

[2] They were popularized by Marie Wilton at the Prince of Wales's Royal Theatre.

They later became a feature of realist theatre, and an example of the "fourth wall removed" principle that characterized the work of noted realists such as Henrik Ibsen's A Doll's House, George Bernard Shaw's Pygmalion, and Anton Chekhov's The Seagull.

[3] In the play style of realism, the box set of the stage was a room with either a plain black backdrop or three walls.

Doors slammed instead of swinging when being shut, as in reality.