A one-act play is a play that has only one act, as distinct from plays that occur over several acts. One-act plays may consist of one or more scenes. The 20-40 minute play has emerged as a popular subgenre of the one-act play, especially in writing competitions. One act plays make up the overwhelming majority of fringe theatre shows including at the Edinburgh Festival Fringe.
The origin of the one-act play may be traced to the very beginning of recorded Western drama: in ancient Greece, Cyclops, a satyr play by Euripides, is an early example. The satyr play was a farcical short work that came after a trilogy of multi-act serious drama plays. A few notable examples of one act plays emerged before the 19th century including various versions of the Everyman play and works by Moliere and Calderon.[1] One act plays became more common in the 19th century and are now a standard part of repertory theatre and fringe festivals.
One act plays were very popular in the 20th century and it is regarded by many to be a modern product.