Polynesian languages
The contemporary classification of the Polynesian languages began with certain observations by Andrew Pawley in 1966 based on shared innovations in phonology, vocabulary and grammar showing that the East Polynesian languages were more closely related to Samoan than they were to Tongan, calling Tongan and its nearby relative Niuean "Tongic" and Samoan and all other Polynesian languages of the study "Nuclear Polynesian".