The Jola or Diola (endonym: Ajamat) are an ethnic group found in Senegal, the Gambia, and Guinea-Bissau. Most Jola live in small villages scattered throughout Senegal, especially in the Lower Casamance region. The main dialect of the Jola language, Fogni, is one of the six national languages of Senegal. Their economy has been based on wet rice cultivation for at least one thousand years. This system has been characterized "one of the most significant examples of 'agrarian civilizations' in West Africa". However, the Jola probably reached the Lower Casamance region in the 14th century, assimilating the previous Bainuk people and their rice tradition. In colonial times, the Jola began to cultivate peanuts as a cash crop in the drier forests. Other activities include palm wine tapping, honey collecting, livestock rearing and the production of other crops such as sweet potatoes, yams and watermelon. The traditional religion of the Jola is animism, which is practised through fetishistic rituals and ceremonies. However, the Jola populations living in well-connected areas have become Islamized due to the influence of the nearby Mandinka people. As a result, many Jola no longer speak their own language and more than half are now Muslims. Unlike the dominant cultures of West Africa, most Jola communities lack any social or political stratification, being organized into families or neighborhoods. However, some communities have a central authority, a King, whose role resembles more that of a priest than of a traditional secular leader. The most prominent Jola Kingdom is in Oussouye. Among the Muslim Jola, there is also the Marabout, a religious leader and teacher. Traditional animist rituals are overseen by elders, who have an important role in Jola society. For Jola boys to attain manhood, they must take part in the initiation festival known as futamp, which takes place every 15 to 20 years in every Jola village. Name The word 'Jola' is the Mandinka name for this ethnic group and means 'payback', since Jolas are renowned for doing back what's been done to them, be it a good or a bad deed. The name of the Jola tribe in their own language is Ajamat (singular) or Ajamataw (plural). 'Diola' is the traditional transliteration in French, which is also very common in English sources. Language and subgroups The Jola speak the Jola language, which is divided into a variety of dialects which may not, at times, be mutually intelligible. These