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 shards on the surface. A survey of the area by Susan and Roderick McIntosh in 1984 identified several Iron Age sites along the el-Ahmar, an ancient wadi system that passes a few kilometres to the east of the modern town. An Iron Age tell complex located southeast of the Timbuktu near the Wadi el-Ahmar was excavated between 2008 and 2010 by archaeologists from Yale University and the Mission Culturelle de Tombouctou. The results suggest that the site was first occupied during the 5th century BC, thrived throughout the second half of the 1st millennium AD and eventually collapsed sometime during