Sign language


 * Sign language.

Possible specific studies
Topics have been classified according to connections shown on the Wikipedia article, these classifications are not to be taken as authoritative.

BANZSL
 * Signed English
 * Manual alphabet
 * Manually Coded Language
 * Home sign
 * BSL
 * Auslan
 * NZSL
 * Maritime Sign Language
 * South African Sign Language


 * French Sign Language
 * Quebec Sign Language
 * /ASL (American Sign Language)
 * Bolivian Sign Language
 * Thai Sign Language
 * Ugandan Sign Language
 * Kenyan Sign Language
 * Philippine Sign Language
 * Malaysian Sign Language.


 * Irish Sign Language
 * [[w:Austro-Hungarian Sign Language
 * Russian Sign Language (Moldovan, Ukrainian)
 * Lithuanian Sign Language
 * Georgian Sign Language
 * Mongolian Sign Language
 * Czech Sign Language
 * Hungarian Sign Language
 * Slovak Sign Language
 * Romanian Sign Language
 * Bulgarian Sign Language
 * Polish Sign Language
 * Dutch Sign Language
 * Flemish Sign Language
 * Belgian-French Sign Language
 * Spanish Sign Language,
 * Mexican Sign Language
 * Brazilian Sign Language (LIBRAS)


 * Scandinavian Sign Language family
 * Finnish Sign Language
 * Swedish Sign Language
 * [[w:Norwegian Sign Language]
 * Danish Sign Language
 * Icelandic Sign Language


 * German Sign Language
 * Israeli Sign Language


 * Nicaraguan Sign Language
 * Al-Sayyid Bedouin Sign Language
 * Providence Island Sign Language.
 * Eastern Arabic Sign Language.


 * Martha's Vineyard Sign Language


 * Kata Kolok in a village in Bali
 * Adamorobe Sign Language in Ghana
 * Yucatec Maya sign language in Mexico
 * Plains Indian Sign Language


 * Australian Aboriginal sign languages
 * Warlpiri Sign Language
 * Warumungu language
 * Diyari language,
 * Kaytetye language and Akitiri Sign Language
 * Arrernte language
 * Warlmanpa language


 * Japanese Sign Language family.
 * Japanese Sign Language
 * Taiwanese Sign Language
 * Korean Sign Language

Written forms of sign languages

 * SignWriting
 * Hamburg Notation System
 * Stokoe notation

Primate use of sign language

 * Main article: Great ape language –Primate use of sign language

There have been several notable examples of scientists teaching non-human primates basic signs in order to communicate with humans. Notable examples are:-
 * Chimpanzees: Washoe and Loulis
 * Gorillas: Michael and Koko.

Gestural theory of human language origins

 * Main article: Origin of language –Gestural theory

The gestural theory states that vocal human language developed from a gestural sign language. An important question for gestural theory is what caused the shift to vocalization.