Rennellese Sign Language

Rennellese Sign Language is an extinct form of home sign documented from Rennell Island in the Solomon Islands in 1974.^[3] It was developed about 1915 by a deaf person named Kagobai and used by his hearing family and friends, but apparently died with him; he was the only deaf person on the island, and there never was an established, self-replicating community of signers. Accordingly, in January 2017 its ISO 639-3 code [rsi] was retired.^[4] Kuschel,^[3] the only source of information about this communication system, cites no evidence to suggest that there was any contact with any sign language.

Rennellese Sign Language
Native to	Solomon Islands
Extinct	ca. 2000[1]
Language family	none (home sign)
Language codes
ISO 639-3	rsi (retired)[2]
ELP	Rennell Island Sign Language