Timbuktu and Tamashek were represented by 10% each to an 80% dominance of the Koyra Chiini language. With Tamashek spoken by both Ikelan and ethnic Tuaregs, its use declined with the expulsion of many Tuaregs following the rebellion, increasing the dominance of Koyra Chiini. Arabic, introduced together with Islam during the 11th century, has mainly been the language of scholars and religion, comparable to Latin in Western Christianity. Although Bambara is spoken by the most numerous ethnic group in Mali, the Bambara people, it is mainly confined to the south of the country. With an improving infrastructure granting Timbuktu access to
Timbuktu peaks in September, while in Timbuktu the flood lasts longer and usually reaches a maximum at the end of December. In the past, the area flooded by the river was more extensive and in years with high rainfall, floodwater would reach the western outskirts of Timbuktu itself. A small navigable creek to the west of the town is shown on the maps published by Heinrich Barth in 1857 and Félix Dubois in 1896. Between 1917 and 1921, during the colonial period, the French used slave labour to dig a narrow canal linking Timbuktu with Kabara. Over the following decades this