Keresan Pueblo Indian Sign Language
Keresan Pueblo Indian Sign Language is a sign language spoken in United States.
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Sign languages are full natural languages with their own grammar, unrelated to the spoken languages around them.
Keresan Sign Language, also known as Keresan Pueblo Indian Sign Language (KPISL) or Keresign, is a village sign language spoken by many of the inhabitants of a Keresan pueblo with a relatively high incidence of congenital deafness (the pueblo is not identified in sources, but the cited population suggests it is Zia Pueblo, New Mexico).
Keresan Sign Language developed locally, and is unrelated to the trade language Plains Indian Sign Language.
From Wikipedia · Keresan Sign Language · CC BY-SA 4.0