Urban fantasy is a subgenre of fantasy, placing supernatural elements in an approximation of a contemporary urban setting. The combination provides the writer with quixotic plot-drivers, unusual character traits, and a platform for classic fantasy tropes, without demanding the creation of an entirely-imagined world. While precursors of urban fantasy date back to the 19th century, present use of the term dates back to the 1970s. The genre's wide popularity began in 1980s North America, as writers and publishers were encouraged by the success of Stephen King and Anne Rice. Urban fantasy combines selected imaginary/unrealistic elements of plot, character, theme, or setting with a largely-familiar world—combining the familiar and the strange. Such elements may exist secretly in the world or may occur openly. Fantastic components may be magic, paranormal beings, recognizable mythic or folk-tale plots, or thematic tropes (such as a quest, or a battle of good and evil). Authors may use current urban myths, borrow fictional technologies, or even invent occult practices, as well as using established supernatural characters and events from folklore, literature, film, or comics. The urban component is usually found in the setting—typically a large or small city—or even a suburban community in a metropolitan area. Common use of contemporary technologies (such as automotive vehicles or communications technology) and everyday community and social institutions (such as libraries, schools/universities, or markets) also establishes a familiar context. The period in which the action occurs may be the fairly recent past or the near future, but will typically require merely only casual historical or other special knowledge from the reader. The city-setting is a tool; used to establish a tone, to help move the plot, and may even be acknowledged as a character itself. Urban fantasy is most often a sub-genre of low fantasy (where magical events intrude on an otherwise-normal world) and/or hard fantasy (treating magic as something understandable and explainable), and works may be found in the sub-genres of horror, occult detective fiction, or the various "punk" genres.