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 has been dubbed the 'Harmattan Haze'. Additionally, when the dust settles in the city, sand builds up and desertification looms. The wealth and very existence of Timbuktu depended on its position as the southern terminus of an important trans-Saharan trade route; nowadays, the only goods that are routinely transported across the desert are slabs of rock salt brought from the Taoudenni mining centre in the central Sahara north of Timbuktu. Until the second half of the 20th century most of the slabs were transported by large salt caravans or azalai, one leaving Timbuktu in early November and the other in