building methods and local builders, vernacular buildings are considered cultural expressions—aboriginal, indigenous, ancestral, rural, ethnic, or regional—as much as architectural artifacts. Evolution of the phrase The term vernacular means 'domestic, native, indigenous', from verna 'native slave' or 'home-born slave'. The word probably derives from an older Etruscan word. The term is borrowed from linguistics, where vernacular refers to language use particular to a time, place, or group. The phrase dates to at least 1857, when it was used by Sir George Gilbert Scott, as the focus of the first chapter of his book "Remarks on Secular & Domestic Architecture, Present & Future", and in a paper read to an architectural society in Leicester in October of that year. As a proponent of the Gothic Revival movement in England, Scott used the term as a pejorative to refer to the "prevailing architecture" in England of the time, all of it, as opposed to the Gothic he wanted to introduce. In this "vernacular" category Scott included St Paul's Cathedral, Greenwich Hospital, London, and Castle Howard, although admitting their relative nobility. The term was popularized with positive connotations in a 1964 exhibition at the Museum of Modern Art, New York, designed by architect Bernard Rudofsky, with a subsequent book. Both were called Architecture Without Architects. Featuring dramatic black-and-white photography of vernacular buildings around the world, the exhibition was extremely popular. Rudofsky brought the concept into the eye of the public and of mainstream architecture, and also kept the definitions loose: he wrote that the exhibition "attempts to break down our narrow concepts of the art of building by introducing the unfamiliar world of nonpedigreed architecture. It is so little known that we don't even have a name for it. For want of a generic label we shall call it vernacular, anonymous, spontaneous, indigenous, rural, as the case may be." The book was a reminder of the legitimacy and "hard-won knowledge" inherent in vernacular buildings, from Polish salt-caves to gigantic Syrian water wheels to Moroccan desert fortresses, and was considered iconoclastic at the time. The term "commercial vernacular" was popularized in the late 1960s by the publication of Learning from Las Vegas by Robert Venturi and Denise Scott Brown, referring to 20th-century American suburban tract and commercial architecture. Although vernacular architecture might be designed by people who do have some training in design, in 1971 Ronald Brunskill nonetheless defined vernacular architecture as: ...a building