A vernacular is the native language or native dialect of a specific population, as opposed to a language of wider communication that is a second language or foreign language to the population, such as a national language, standard language, or lingua franca.

The term is not a recent one. In 1688 James Howell wrote:

Concerning Italy, doubtless there were divers before the Latin did spread all over that Country; the Calabrian, and Apulian spoke Greek, whereof some Relicks are to be found to this day; but it was an adventitious, no Mother-Language to them: 'tis confess'd that Latium it self, and all the Territories about Rome, had the Latin for its maternal and common first vernacular Tongue; but Tuscany and Liguria had others quite discrepant, viz. the Hetruscane and Mesapian, whereof though there be some Records yet extant; yet there are none alive that can understand them: The Oscan, the Sabin and Tusculan, are thought to be but Dialects to these.

Here vernacular, mother language and dialect are already in use in a modern sense. According to Merriam-Webster's, "vernacular" was brought into the English language as early as 1601 from Latin vernaculus, "native", which had been in figurative use in Classical Latin as "national" and "domestic", having originally been derived from vernus and verna, a male or female slave respectively born in the house rather than abroad. The figurative meaning was broadened from the diminutive extended words vernaculus, vernacula. Varro, the classical Latin grammarian, used the term vocabula vernacula, "termes de la langue nationale" or "vocabulary of the national language" as opposed to foreign words.

African Americans (also referred to as Black Americans or Afro-Americans, and formerly as American Negroes) are citizens or residents of the United States that have ancestry from any of the native populations of Sub-Saharan Africa.

African Americans make up the single largest racial minority in the United States. Most African Americans are of West and Central African descent and are descendants of enslaved Africans within the boundaries of the present United States. However, some immigrants from African, Caribbean, Central American or South American nations, or their descendants, may be identified or self-identify with the term.

African-American history starts in the 16th century with African slaves who quickly rose up against the Spanish explorer Lucas Vázquez de Ayllón and progresses to the present day, with Barack Obama as the 44th and current President of the United States. Between those landmarks there have been events and issues, both resolved and ongoing, including slavery, racism, Reconstruction, development of the African-American community, participation in the great military conflicts of the United States, racial segregation, and the Civil Rights Movement.