Tikopia is a small volcanic island located north of Vanuatu and east of the Solomons. It is one of the 'Polynesian outliers', in that its people are clearly Polynesian, but live outside the area usually defined as Polynesia. Tikopia is noted for being the subject of detailed ethnographic study by the New Zealand anthropologist Raymond Firth, and for having maintained its indigenous religion well into the twentieth century. The last pagan chiefs of Tikopia converted to Christianity in 1955.