Dialects: None known. Related to Japanese , and Taiwanese , sign languages.
Genealogy:
Language Use: Used since 1889. Signed interpretation required in court, used at important public events, and social services programs. Instruction for parents of deaf children. Many sign language classes for hearing people.
Language Development: Primary schools for deaf children using sign language since 1908. TV. Dictionary.
Typology: Finger-spelling system.
Nation of Origin: Korea, South, Korea, North