Old Chiangmai–Bangkok Sign Language family

Old Chiangmai–Bangkok Sign Language
Linguistic classification: Possibly related to other sign languages of SE Asia
Glottolog: oldc1250[1]

The Old Chiangmai–Bangkok Sign Language family is a language family of two related sign languages: Old Chiangmai Sign Language and Old Bangkok Sign Language. Woodward (2003) found that they were 65% cognate, indicating that the two languages are related, possibly due to migration between Chiangmai and Bangkok. There appear to be connections to sign languages of Vietnam (especially to Hai Phong Sign Language), and possibly Laotian sign languages, but the nature of these connections (whether areal or genetic) has not been determined. Village sign languages of Thailand, such as Ban Khor Sign Language, are unrelated.


  1. Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, eds. (2016). "Old Chiangmai–Bangkok Sign". Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.
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