Missatge: Sign languages generally do not have any linguistic relation to the spoken languages of the lands in which they arise. The correlation between signed and spoken languages is complex and varies depending on the country more than the spoken language. For example, the US, Canada, UK, Australia and New Zealand all have English as their dominant language, but American Sign Language (ASL), used in the US and most parts of Canada, is derived from French Sign Language whereas the other three countries sign dialects of British, Australian and New Zealand Sign Language.[7] Similarly, the sign languages of Spain and Mexico are very different, despite Spanish being the national language in each country,[8] and the sign language used in Bolivia is based on ASL rather than any sign language that is used in a Spanish-speaking country.[9] Variations also arise within a 'national' sign language which don't necessarily correspond to dialect differences in the national spoken language; rather, they can usually be correlated to the geographic location of residential schools for the deaf.[10][11]    Pregunta pels que dominin del tema. No hi ha l'oportunitat en aquest cas de fer un llenguatge universal de sordomuts? I doncs, per què n'hi ha d'haver 200 podent aglutinar tota la varietat en un? La pregunta és si l'estructura diferent dels idiomes que els envolten ho impediria. http://en.wikipedia.org/wiki/List_of_sign_
Emocions: sadness
anger

Resposta: El llenguatge de signes, a diferència dels llenguatge morse, de l'AFI o del Braile, expressa idees, estructures sintàctiques, gràmatica, conceptes amplis. En el punt que aquests conceptees s'expressen de manera diferent en diferents zones geogràfiques. És impossible la unificació dels llenguatges de signes. Passaria el mateix que amb l'Esperanto.
Emocions: sadness, anger