Oral history in Dughore recounts that the northwest, northeast and southeast of Kolombangara had their own languages, which became extinct when the people of those areas were annihilated in warfare that probably occurred in the early 19th century.
According to oral history in Dughore, the northwest, northeast, and southeast regions of Kolombangara spoke distinct languages that disappeared after a war around the early 19th century, during which the inhabitants were annihilated.