Mali was once part of three famed West African empires which controlled trans-Saharan trade in gold, salt, other precious commodities, and slaves majorly during the reign of Mansa Musa from c. 1312 – c. 1337. These Sahelian kingdoms had neither rigid geopolitical boundaries nor rigid ethnic identities. The earliest of these empires was the Ghana Empire, which was dominated by the Soninke, a Mande-speaking people. The empire expanded throughout West Africa from the 8th century until 1078, when it was conquered by the Almoravids.