Who was Mansa Musa, the richest man in history?

Mansa Musa was the emperor of the Mali Empire who ruled from around 1312 to 1337, a West African king so wealthy that when he passed through Cairo on his pilgrimage to Mecca he flooded the market with so much gold that the price of bullion crashed and stayed low for years, making him, by most accounts, the richest person in recorded human history.

Quick facts

  • Born: c. 1280, Mali Empire (died c. 1337, around age 57)
  • Title: Mansa, meaning "king" or "emperor" in the Mandé language; the 9th Mansa of the Mali Empire
  • Full name: Musa Keita I, also known as Kankan Musa, Kankou Musa and several other names
  • Titles of honor: The Lion of Mali, Lord of the Mines of Wangara, Emir of Melle
  • Spouse: Inari Konte
  • Children: Mansa Maghan I (who succeeded him)
  • Religion: Sunni Islam, Maliki school
  • Reign: c. 1312 to c. 1337 (about 25 years)
  • Dynasty: Keita dynasty

Their story

The Mali Empire, the largest and richest empire yet seen in West Africa, was founded by Sundiata Keita, who ruled around 1230 to 1255. Musa was the grand-nephew of Sundiata Keita. His father, Faga Leye, was the son of Mande Bori, who was Sundiata's brother.

Mansa Musa gained the throne after his predecessor, Mansa Abu Bakr II, sailed out into the Atlantic Ocean with a large fleet of ships and was never seen again. Upon his ascension to the throne, Mansa Musa quickly expanded his empire, conquering 24 new cities.

At its height under Mansa Musa, the empire included present-day Mali, Senegal, Gambia, Guinea, Niger, Nigeria, Chad and Mauritania. With an army numbering around 100,000 men, including an armoured cavalry corps of 10,000 horses, Mansa Musa was able to extend and maintain Mali's vast empire, doubling its territory and making it second in size only to that of the Mongol Empire at the time.

What he was worth

According to the British Museum, during Mansa Musa's reign, the Mali Empire accounted for nearly half of the Old World's gold, an astonishing amount to be controlled by just one kingdom. Gold in the 14th century functioned much like oil does in today's economy: it was a highly sought-after resource that created immense wealth for those who controlled its production and trade.

Across different economic models, Mansa Musa's wealth adjusted for inflation typically falls between $300 billion and $500 billion, depending on specific assumptions about price levels and productivity. Economic historians are careful to note these are estimates built on contested assumptions, but every credible model arrives at a figure that dwarfs the net worth of any billionaire alive today.

The pilgrimage that stunned the world

He made his wealth and that of Mali known through a long and extravagant pilgrimage to Mecca in 1324. Chroniclers of the time reported that Mansa Musa's pilgrimage caravan comprised some 60,000 people and an immeasurable amount of gold. His caravan may have had 500 slaves each carrying a gold staff, and 80 to 100 camels each carrying 300 pounds of gold dust. He also traveled with his wife, Inari Konte, and her 500 serving women.

It is said that in every town where he stopped on a Friday between Mali and Egypt, he built a mosque on that very day.

While in Cairo, Mansa Musa met with the Sultan of Egypt, and his caravan spent and gave away so much gold that the overall value of gold decreased in Egypt for the next 12 years. His generosity was not charity in the casual sense: it was a geopolitical statement. The world learned that day that Africa held wealth Europe could barely imagine.

The extravagant wealth of Mansa Musa also placed him, literally, on the map when a depiction of him was included in the 1375 Catalan Atlas, one of the most important world maps of Medieval Europe. The atlas shows West Africa dominated by a depiction of Mansa Musa sitting on a throne, holding a nugget of gold in one hand and a golden staff in the other.

Builder of knowledge, not just wealth

Here is the part that almost never makes the headlines: Mansa Musa understood that gold without knowledge is just metal.

A Muslim like his royal predecessors, Mansa Musa brought back architects and scholars from his pilgrimage to Mecca who would build mosques and universities that made such cities as Timbuktu internationally famous. He recruited scholars from the wider Muslim world, such as the Andalusian poet and architect Abu Ishaq al-Sahili, and helped establish Timbuktu as a center of Islamic learning.

By the end of Mansa Musa's reign, the Sankore University in Timbuktu had been converted into a fully staffed Islamic school and university with the largest collection of books in Africa since the Library of Alexandria. It was capable of housing 25,000 students and held between 400,000 and 700,000 manuscripts. Mansa Musa also built the Djinguereber Mosque, paying the renowned scholar Abu Ishaq Al Saheli 200 kilograms of gold to oversee its construction.

The founding of the Sankore mosque and its renowned center of Islamic learning, the expansion of trade in Timbuktu and the architectural innovations throughout Mali reflect the importance of Mansa Musa's administration and patronage.

Legacy

Mansa Musa died sometime between 1332 and 1337. His son Mansa Maghan I, who had ruled as regent while his father was on pilgrimage, took the throne. The Mali Empire continued to prosper for about a century after Mansa Musa died, until the Portuguese opened up new trade routes.

What I find remarkable about this man is that the world spent centuries trying to tell a story about Africa that erased him completely. Teachers said African people had no history, no civilization, no wealth worth studying. Mansa Musa's life is the answer to that lie. He ran the second-largest empire on earth, bankrolled the world's most sophisticated university, and single-handedly crashed the gold market of Egypt just by passing through. That is not a footnote. That is the story itself.

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