With an inflation adjusted fortune of $400 billion, Mansa Musa I would have been considerably richer than the world's current richest man, Carlos Slim, who ranks in 22nd place with a relatively paltry $68 billion. The list, compiled by the Celebrity Net Worth website, ranks the world's 24 richest people of all time.Oct 16, 2012
Mansa Musa (about 1280 – about 1337) was an emperor (mansa) of the Mali Empire during the 14th century. He became emperor in 1307. He was the first African ruler to be widely known throughout Europe and the Middle East. Mansa Musa was the great nephew of Sundiata Keita, who was founder of the empire.