This article offers a brief overview of historical linguistics and explores the value of historical "sign" linguistics. The specific focus of the article is on the question of the extent to which the concept of "sign language families" is a legitimate and useful one. It is suggested that although lateral transmission and…

This article examines sign languages that belong to a complex of indigenous sign languages in Mesoamerica that K'iche'an Maya people of Guatemala refer to collectively as Meemul Tziij. It explains the relationship between the Meemul Tziij variety of the Yukatek Maya village of Chican (state of Yucatan, Mexico) and the hitherto undescribed Meemul…

Applies a taxonomic principle to analyze the gradual elaboration of any language or sign system as a technology of communication rather than the reflection of a specialized language faculty or cluster of language faculties. (Author/CB)

Psycholinguistic and neurological examination of the use of duality of patterning as a primary criterion for determining if a system is a (signed or spoken) language revealed the existence of duality in processes that facilitate language acquisition. (27 references) (Author/CB)