education are English and French. The use of English or French as the formal language is split along political lines. Bislama is a creole spoken natively in urban areas. Combining a typical Melanesian grammar and phonology with an almost entirely English-derived vocabulary, Bislama is the lingua franca of the archipelago, used by the majority of the population as a second language. In addition, 113 indigenous languages, all of which are Southern Oceanic languages except for three outlier Polynesian languages, are spoken in Vanuatu. The density of languages, per capita, is the highest of any nation in the world, with an average of only 2,000 speakers per language. All vernacular languages of Vanuatu (i.e., excluding Bislama) belong to the Oceanic branch of the Austronesian family. In recent years, the use of Bislama as a first language has considerably encroached on indigenous languages, whose use in the population has receded from 73.1 to 63.2 per cent between 1999 and 2009. Religion Christianity is the predominant religion in Vanuatu, consisting of several denominations. About one-third of the population belongs to the Presbyterian Church in Vanuatu, making Vanuatu the most Presbyterian country in the world. Roman Catholic and Anglican are other common denominations, each claiming about 15% of the population. As of 2010, 1.4% of the people of Vanuatu are members of the Bahá’í Faith, making Vanuatu the 6th most Bahá’í country in the world. The less significant groups are the Seventh-day Adventist Church, the Church of Christ, Neil Thomas Ministries (NTM), Jehovah's Witnesses, and others. In 2007, Islam in Vanuatu was estimated to consist of about 200 converts. Because of the modern goods that the military in the Second World War brought with them when they came to the islands, several cargo cults developed. Many died out, but the John Frum cult on Tanna is still large, and has adherents in the parliament. Also on Tanna is the Prince Philip Movement, which reveres the United Kingdom's Prince Philip. Villagers of the Yaohnanen tribe believed in an ancient story about the pale-skinned son of a mountain spirit venturing across the seas to look for a powerful woman to marry. Prince Philip, having visited the island with his new wife Queen Elizabeth II, fit the description exactly and is therefore revered as a god around the isle of Tanna. After Philip died, an anthropologist familiar with the group, said that after their period of mourning