The methods of modern linguistic geography began in late 19th-century Europe with the use of informants rather than texts, and resulted in the first linguistic atlases of France, by Jules GilliƩron, and of Germany, by Georg Wenker. Those techniques were refined in the United States in the preparation of the Linguistic Atlas of the United States (Hans Kurath et al., ed.) and its derivative works. In recent years linguists have become increasingly interested in social dialects, such as the languages of social groups within an urban population and the languages of specific occupations (farmers, dockworkers, coal miners, government workers) or lifestyles (beatniks, drug users, teenagers, feminists). In the United States much work has been done in the area of black English, the common dialect of many African Americans. See also slang.
See H. Orton and E. Dieth, ed., Survey of English Dialects (1962-70); H. B. Allen and G. N. Underwood, Readings in American Dialectology (1971); R. H. Bentley and S. D. Crawford, ed., Black Language Reader (1973); H. Kurath, Studies in Area Linguistics (1973); P. Trudgill, Dialects in Contact (1986); C. M. Carver, American Regional Dialects (1987).
Variety of a language spoken by a group of people and having features of vocabulary, grammar, and/or pronunciation that distinguish it from other varieties of the same language. Dialects usually develop as a result of geographic, social, political, or economic barriers between groups of people who speak the same language. When dialects diverge to the point that they are mutually incomprehensible, they become languages in their own right. This was the case with Latin, various dialects of which evolved into the different Romance languages. Seealso koine.
Learn more about dialect with a free trial on Britannica.com.