Mansa Musa became king of the Mali empire in 1312 after his brother, the previous king, Abu-Bakr-II built a fleet of ships and sailed into the Atlantic, not to return. At this time, Mali was one of the richest countries in the world thanks to their abundance of gold and salt. Mansa Musa was a devout Muslim, and for his journey to Mecca he brought a large caravan. In this caravan he had gold, lots, and lots of gold. Everywhere they went they would leave gold for the people. Mansa Musa gave out so much gold for free on this journey the worth of gold had dropped. It was calculated that when adjusted for inflation, Mansa Musa had a fortune of four-hundred billion dollars.