Map showing the differenciation of Proto-Polynesian language in two subgroups (nuclear polynesian and tongic) around 900. In blue, the name of the Polynesian languages that emerged thereof (note that Niuatoputapu language died under tongan pressure).
From the works of Pawley 1966, 1967, Biggs 1978, Clark 1979. Map inspired by Kirch and Green 2001, Hawaiki, Ancestral Polynesia, an essay in Historical Anthropology, p. 59

Projection: Lambert azimuthal equal-area projection
File:Wallis, Futuna, Samoa, Tonga, Niue, Fidji blank map.svg, Own work
Skimel