Mansa Musa ruled Mali from 1312 to 1337, expanding its empire and controlling trade routes for gold and salt throughout Africa. In 1324, Mansa Musa embarked on a pilgrimage to Mecca with an enormous caravan carrying over 2 tons of gold. His spending in Cairo caused gold values to drop. Upon his return, he brought Arab scholars and architects to Timbuktu, establishing it as an Islamic learning center.
Sundiata united the Mandinka people after defeating the brutal Samanguru in battle in 1235. As the new King of Mali, Sundiata improved agriculture and introduced cotton.