The Swahili of Mozambique, numbering approximately 18,500 people, are Engaged yet Unreached. They are a Bantu, Afro-Arab, and Comorian trading people of Mozambique's coast, part of the Swahili civilization whose Indian Ocean commerce and Islamic faith, adopted from ninth-century Bantu traders, built city-states stretching south to ancient Sofala. They mostly adhere to Folk Islam and Swahili (individual language) is their primary language.