Kenyan Sign Language (KSL)

Kenyan Sign Language (KSL) is the indigenous visual-gestural language of Kenya's Deaf community, approximately 300,000–340,000 of whom use KSL as a first or primary language, out of an estimated total deaf population of 600,000. KSL emerged from Deaf school communities from 1958 onwards — the Dagoretti Special School for the Deaf (1958) and schools established in western Kenya in the early 1960s were the primary loci of its development. While KSL is a grammatically distinct language, its early development was influenced by ASL (which shaped the manual alphabet and some lexicon through Peace Corps and missionary involvement) and, in the earliest years, by BSL. The 2010 Constitution of Kenya recognises KSL as a language of Parliament and mandates the State to promote its development alongside other indigenous languages; the KSL Act 2022 further strengthened legal protections for KSL users. This sub-community archives video recordings of KSL narratives, signed wordlists with Kiswahili and English glosses, grammatical descriptions, and educational materials. All video deposits include written Kiswahili and English subtitles.