A historical period drama (also known as a historical drama, period drama or period piece) is a work of art set in, or reminiscent of, an earlier time period. The term is usually used in the context of film and television. It is an informal crossover term that can apply to several genres but is most often heard in the context of historical fiction and romances, adventure films, and swashbucklers. The implication is that the audience is attracted as much by the lavish costumes as by the content. In the performing arts, a period piece is a work set in a particular era. This informal term covers all countries, all periods and all genres. It may be as long and general as the medieval era or as limited as one decade—the Roaring Twenties, for example.