African-American English (AAE), also known as Black English in American linguistics, is the set of English dialects primarily spoken by most black people in the United States; most commonly, it refers to a dialect continuum ranging from African-American Vernacular English to a more standard English. African-American English shows variation such as in vernacular versus standard forms, rural versus urban characteristics, features specific to singular cities or regions only, and other sociolinguistic criteria. There has also been a significant body of African-American literature and oral tradition for centuries. African-American English (AAE), also known as Black English in American linguistics, is the set of English dialects primarily spoken by most black people in the United States; most commonly, it refers to a dialect continuum ranging from African-American Vernacular English to a more standard English. African-American English shows variation such as in vernacular versus standard forms, rural versus urban characteristics, features specific to singular cities or regions only, and other sociolinguistic criteria. There has also been a significant body of African-American literature and oral tradition for centuries. African-American English began as early as the seventeenth century, when the Atlantic slave trade brought African slaves into the British-colonial North America in an area that became the Southern United States in the late eighteenth century. During the development of plantation culture in this region, nonstandard dialects of English were widely spoken by British settlers, as well as likely some creolized varieties, probably resulting in both first- and second-language English varieties developed by African Americans. The nineteenth century's evolving cotton-plantation industry, and eventually the twentieth century's Great Migration, certainly contributed greatly to the spread of the first of these varieties as stable dialects of English. The most widespread modern dialect is known as African-American Vernacular English. African-American Vernacular (AAVE) is the native variety of the vast majority of working- and middle-class African Americans, particularly in urban areas, with its own unique accent, grammar, and vocabulary features. Typical features of the grammar include a 'zero' copula (e.g., she my sister instead of she's my sister), simplification of the possessive form (e.g., my momma friend instead of my mom's friend), and complexification of verb aspects and tenses beyond those of other English dialects (e.g., constructions like I'm a-run, I be running, I been runnin, I done ran, etc.). Common features of the phonology include non-rhoticity (dropping the r sound at the end of syllables), the metathetic use of aks instead of ask, simplification of diphthongs (e.g., eye typically sounds like ah), a raising chain shift of the front vowels, and a wider range of intonation or 'melody' patterns than most General American accents. AAVE is used by middle-class African Americans in casual, intimate, and informal settings as one end of a sociocultural language continuum, and AAVE shows some slight variations by region or city. African-American Standard English is the prestigious end of the middle-class African-American language continuum, used for more formal, careful, or public settings than AAVE. This variety exhibits standard English vocabulary and grammar but often retains certain elements of the unique AAVE accent, with intonational or rhythmic features maintained more than phonological ones. Most middle-class African Americans are typically bi-dialectal between this standard variety and AAVE, learning the former variety through schooling, so that adults will frequently even codeswitch between the two varieties within a single conversation. Of the phonological features maintained in this standard dialect, they tend to be less marked. For instance, one such characteristic is the omission of the final consonant in word-final consonant clusters, so words such as past or hand may lose their final consonant sound. Black Appalachian Americans have been reported as increasingly adopting Appalachian/Southern dialect commonly associated with white Appalachians. These similarities include an accent that is rhotic, the categorical use of the grammatical construction 'he works' or 'she goes' (rather than the AAVE 'he work' and 'she go'), and Appalachian vocabulary (such as airish for 'windy'). However, even African-American English in Appalachia is diverse, with African-American women linguistically divided along sociocultural lines. African-American English in the North Carolina Outer Banks is rapidly accommodating to urban AAVE through the recent generations, despite having aligned with local Outer Banks English for centuries. Older or earlier African-American English refers to a set of many heterogeneous varieties studied and reconstructed by linguists as theoretically spoken by the first African Americans and African slaves in the United States. Of primary interest is the direct theoretical predecessor to AAVE. Mainly four types of sources have been used for the historical reconstruction of older AAVE: written interviews, ex-slave audio recordings, the modern diaspora dialects of isolated black communities, and letters written by eighteenth- and nineteenth-century African Americans. The use of the zero copula (the absence of is or are, as in she gon' leave), nonstandard plural forms (the three man, mans, or even mens) and multiple negatives (as in no one didn't leave me nothing) were occasional or common variants in these earlier dialects, and the latter item even the preferred variant in certain grammatical contexts. Other nonstandard grammatical constructions associated with AAVE are documented in older dialects too; however, many of them are not, evidently being recent innovations of twentieth-century urban AAVE. Sea Island Creole English, or 'Gullah', is the distinct language of some African Americans along the South Carolina and Georgia coast. Gullah is an English creole: a natural language grammatically independent from English that uses mostly English vocabulary. Most Gullah speakers today probably form a continuum with the English language. A sub-dialect of Gullah is also spoken in Oklahoma and Texas, known as Afro-Seminole Creole. There is a long tradition of representing the distinctive speech of African Americans in American literature. A number of researchers have looked into the ways that American authors have depicted the speech of black characters, investigating how black identity is established and how it connects to other characters. Brasch (1981:x) argues that early mass media portrayals of black speech are the strongest historical evidence of a separate variety of English for blacks. Early popular works are also used to determine the similarities that historical varieties of black speech have in common with modern AAVE.