Ivory Coast
French, the official language, is taught in schools and serves as a lingua franca in the country. An estimated 70 languages are spoken in Ivory Coast. One of the most common is Dyula, which acts as a trade language, as well as a language commonly spoken by the Muslim population.
Bouakako Sign Language
Bouakako Sign Language, known in French as "la Langue des Signes Bouakako" (LaSiBo), is an emerging village sign language in the village of Bouakako, 6 km to the west of the town of Hiré in southern Ivory Coast. LaSiBo has been used by several generations of deaf people, most of whom are related. Many of the hearing community, who speak Yocoboué Dida, know something of the language as well, and some are fluent. The vocabulary is somewhat variable between speakers, suggesting that the language is still quite young. Based on the age of the oldest deaf signer, it is probably at least 50 years old (as of 2016).