Bantu language that is extensively spoken in the African Great Lakes region. Swahili is the de facto national and official language of Tanzania. Many local residents also speak Arabic, English, Italian and French. The dialect of Swahili spoken in Zanzibar is called kiunguja. Kiunguja, which has a high percentage of Arabic loanwords, enjoys the status of Standard Swahili not in Tanzania only but also in other countries, where Swahili is spoken. Arabic Three distinct varieties of Arabic are in use in Zanzibar: Standard Arabic, Omani Arabic and Hadrami Arabic. Both vernacular varieties are falling out of use, although the Omani one is spoken by a larger group of people (probably, several hundreds). In parallel to this, Standard Arabic, traditionally associated with the Quran and Islam, is very popular not only among ethnic Arabs but also among Muslims of various descent who inhabit Zanzibar. Nevertheless, Standard Arabic is mastered by very few people. This can be attributed to the aggressive policy of Swahilisation. Despite the prestige and importance the Arabic language once enjoyed, today it is no longer the dominant spoken language. Religion Zanzibar's population is almost entirely Muslim, with a small Christian minority of around 22 000. Other religious groups include Hindus, Jains and Sikhs. The Anglican Diocese of Zanzibar was founded in 1892. The first Bishop of Zanzibar was Charles Smythies, who was translated from his former post as Bishop of Nyasaland. Christ Church Cathedral had fallen into poor condition by the late 20th century, but it was fully restored in 2016, at a cost of one million Euros, with a world heritage visitor centre. The restoration was supported by the Tanzanian and Zanzibari governments, and overseen by the diocese in partnership with the World Monuments Fund. The restoration of the spire, clock, and historic Willis organ are still outstanding. Historically the diocese included mainland locations in Tanganyika. In 1963 it was renamed as the Diocese of Zanzibar & Dar es Salaam. Two years later, in 1965, Dar es Salaam became a separate diocese. The original jurisdiction was renamed as the Diocese of Zanzibar & Tanga. In 2001 the mainland links were finally ended, and it is now known as the Diocese of Zanzibar. The diocese includes parishioners on the neighbouring island of Pemba. Ten bishops have served in the diocese from 1892 to the present day. The bishop is Michael Hafidh. It is part of the Province of