Mansa Musa's wealth is a thing of legend. It's impossible to know exactly how much he was worth, but he himself spread rumours that gold grew like a plant within the Mali Empire. When he embarked on a storied pilgrimage to Mecca in 1324, he gave away so much gold in Egypt that the value of the ore depreciated. But there was much more to the ninth Mansa of Mali than his great wealth - under his reign the empire prospered as a trade hub between West Africa and the Mediterranean World and a centre of Islamic culture and learning.

Dan is joined by Sirio Canós-Donnay, an archaeologist specialising in the pre-colonial states of West Africa. She charts the course of the Mali Empire from its founding by the legendary warrior-king Sundiata Keita, to the zenith of its power under Mansa Musa.

Produced by James Hickmann and edited by Dougal Patmore.

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