Christianity arrived to Zambia through European colonialism, and its wide variety of sects and movements reflect changing patterns of missionary activity; for example, Catholicism came from Portuguese Mozambique in the east, while Anglicanism reflects 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.