This workshop provides an overview of a historical and linguistic study on Black ASL with respect to school history, generational differences, and language differences. For the Black ASL study, Deaf African-American informants in two age groups (over 55 and under 35) were interviewed in the southern U.S. states which had separate schools or departments for Black deaf children during the segregation period. Researchers of Black ASL have identified the geographical and social factors that foster the development and maintenance of Black ASL and provided a description of the phonological, morphological, syntactic, and discourse features that make Black ASL recognizable as a distinct variety of ASL. The examples of the features identified in the study are handedness in signs, height of location in signs, size of signing space, adoption of characters in signing, and effects of language contact between Black ASL and African American English. The findings of Black Deaf signers’ perceptions of Black ASL are used to explain how some Black signs created, remained or disappeared over time.