The language is used by people who attended a school for the deaf, CEBE La Inmaculada de Barranco, before about 1960, when LSP was established as the national language for the deaf. The school had been opened in 1939. Inmaculada Sign Language has about half the influence from American Sign Language that LSP has, and the manual alphabet is rather different.[1]
^a Sign-language names reflect the region of origin. Natural sign languages are not related to the spoken language used in the same region. For example, French Sign Language originated in France, but is not related to French. Conversely, ASL and BSL both originated in English-speaking countries but are not related to each other; ASL however is related to French Sign Language.
^b Denotes the number (if known) of languages within the family. No further information is given on these languages.
