British influences from the south. Following its independence in 1964, Zambia saw a greater influx of other church missions from across the world, particularly North America and Germany. In subsequent decades, Western missionary roles have been assumed by native believers (except for some technical positions, such as physicians). After Frederick Chiluba, a Pentecostal Christian, became president in 1991, Pentecostal congregations expanded considerably around the country. A large number of otherwise smaller Christian denominations are disproportionately represented in Zambia. The country has one of the world's largest communities of Seventh-day Adventists on a per-capita basis, accounting for about 1 in 18 Zambians. The Lutheran Church of Central Africa has over 11,000 members in the country. Counting only active preachers, Jehovah's Witnesses, who have been present in Zambia since 1911, have over 190,000 adherents; nearly 800,000 attended the annual observance of Christ's death in 2021. About 12 percent of Zambians are members of the New Apostolic Church; with more than 1.2 million believers, the country has the third-largest community in Africa, out of a total worldwide membership of over 9 million. Not including indigenous beliefs, non-Christian faiths total less than three percent of the population, though are nonetheless highly visible, particularly in urban areas. Followers of the Baháʼí Faith number over 160,000, or 1.5 percent of the population, which is among the largest communities in the world; the William Mmutle Masetlha Foundation, run by the Baháʼí community, is particularly active in areas such as literacy and primary health care. Approximately 0.5 percent of Zambians are Muslim, and a similar proportion are Hindu, in each case highly concentrated in urban areas. About 500 people belong to the Ahmadiyya community, which is variably considered an Islamic movement or a heretical sect. There is also a small but successful Jewish community, composed mostly of Ashkenazis. Languages The exact number of Zambian languages is unknown, although many texts claim that Zambia has 73 languages and/or dialects; this figure is probably due to a non-distinction between language and dialect, based on the criterion of mutual intelligibility. On this basis, the number of Zambian languages would probably be only about 20 or 30. The official language of Zambia is English, which is used for official business and public education. The main local language, especially in Lusaka, is Nyanja (Chewa), followed by Bemba. In the Copperbelt, Bemba is the main language and Nyanja second. Bemba and Nyanja are spoken