The largest single tribe is the Fang (Fon, or Pamúe), who entered Río Muni from the east largely between 1687 and 1926. The earlier Riomunians, who had probably arrived in the 14th century, were forced by the Fang to flee to the coast. The Bubi on Bioko are descendants of the indigenous African Bantu-speaking population that fled from the Cameroonian and Riomunian mainland in the 13th century. Fernandinos—descendants of mainland slaves liberated by the British navy in the 19th century—and Europeans, especially Spanish Asturians and Catalonians, have long dominated commerce and government. It is estimated that the 67 Fang clans represent 80% of the population. Europeans, mostly Spanish, number less than 1,000.