(TIML FOOD4THOUGHT) Amazon CEO Jeff Bezos is the wealthiest man in the world, with a net worth of $118 billion. According to Bloomberg’s Billionaires Index, his fellow billionaires Bill Gates and Warren Buffet rank just behind him.

But he’s still far from African emperor Musa I of Mali, who is thought to be the richest person of all time — “richer than anyone could describe,” reported Time.

Literally. His fortune was incomprehensible, Time’s Jacob Davidson writes: “There’s really no way to put an accurate number on his wealth.” Plus, since accounts of his wealth stem from centuries-old testimony, it’s possible that some stories about the “mansa” — Mandinka for “sultan” or “emperor” — were exaggerated.

We do know for a fact that Mansa Musa ruled the Mali Empire in the 14th century and his land was laden with lucrative natural resources, most notably gold. He was also a successful military leader, having captured 24 cities, according to David C. Conrad’s “Empires of Medieval West Africa: Ghana, Mali, and Songhay.” But it was his Islamic faith that prompted him to make his pilgrimage to Mecca in 1324, thus exposing his extraordinary riches to the outside world.

The numbers vary, but Mansa Musa’s reportedly 60,000-strong caravan was said to include 1,000 attendants, 100 camels loaded with gold, plenty of the emperor’s own personal musicians, and 500 slaves bearing gold staffs.

He also built the legendary Djinguereber Mosque in Timbuktu, which still stands.

After reigning for 25 years, Mansa Musa died in 1337. He was succeeded by his son, Maghan I. “The king’s rich legacy persisted for generations and to this day, there are mausoleums, libraries, and mosques that stand as a testament to this golden age of Mali’s history,” Smith said.