Papuans - the oldest population of the island of New Guinea and parts of Indonesia. The main population of the State of Papua New Guinea. Are physically close to the Melanesians, but differ from them in language. Not all Papuan languages are related to each other. The national language of the Papuans in PNG is a creole language Tok Pisin on the English basis. Most of them share the national beliefs, but now extended to Christianity; in all the villages have a church.