The Gambia President Adama Barrow changed the name back to "Republic of The Gambia". Arab traders provided the first written accounts of the Gambia area in the ninth and tenth centuries. During the tenth century, Muslim merchants and scholars established communities in several West African commercial centres. Both groups established trans-Saharan trade routes, leading to a large export trade of local people as slaves, also gold and ivory, as well as imports of manufactured goods. By the 11th or 12th century, the rulers of kingdoms such as Takrur, a monarchy centred on the Senegal River just to the north, ancient Ghana and
Wildlife of the Gambia period. This practice has since changed to two or three years rotation. While the agricultural crops grown are sorghum, millet and ground nuts, the tree species retained, within the lands cleared for agricultural use, are the "Acacia albida", baobab, ficus species, winterthorn and African locust "(Parkia biglobosa)". Savanna and the Sahel habitats are of two types. One is the southern Guinea savanna which has rich and dense vegetation of over 50 tree species. The other is the Sudan Savanna which is contiguous to the Guinea savanna on the north bank of the Gambia River. These areas are dry woodlands with