American Sign Language (ASL) is the predominant sign language of Deaf communities in the United States and most of anglophone Canada. Besides North America, dialects of ASL and ASL-based creoles are used in many countries around the world, including much of West Africa and parts of Southeast Asia. ASL is also widely learned as a second language, serving as a lingua franca. ASL is most closely related to French Sign Language (LSF). It has been proposed that ASL is a creole language, although ASL shows features atypical of creole languages, such as agglutinative morphology. ASL originated in the...

British Sign Language (BSL) is the sign language used in the United Kingdom (UK), and is the first or preferred language of some deaf people in the UK; there are 125,000 deaf adults in the UK who use BSL plus an estimated 20,000 children. In 2011, 15,000 people, living in England and Wales, reported themselves using BSL as their main language. The language makes use of space and involves movement of the hands, body, face and head. Many thousands of people who are not deaf also use BSL, as hearing relatives of deaf people, sign language interpreters or as a result of other contact with the British...