The following outline is provided as an overview of and topical guide to Papua New Guinea: The Independent State of Papua New Guinea is a sovereign island nation of Oceania comprising the eastern half of the Island of New Guinea and numerous offshore islands in the western South Pacific Ocean. Papua New Guinea is located in a region defined since the early 19th century as Melanesia. Its capital, and one of its few major cities, is Port Moresby. It is one of the most diverse countries on Earth, with over 850 indigenous languages and at least as many traditional societies, out of a population of just under 6 million. It is also one of the most rural, with only 18 per cent of its people living in urban centres. The country is also one of the world's least explored, culturally and geographical