RENEE MONTAGNE, HOST:
Good morning. I'm Renee Montagne. Nearly 700 years after he ruled the Mali Empire, King Mansa Musa has been awarded the title of richest person in history. Personal fortune: $400 billion. That's according to a new inflation-adjusted list compiled by Celebrity Net Worth. West Africa's salt and gold were the source of Musa's great wealth, which he used to build magnificent mosques. More modern names on the list: The Rothchilds and John D. Rockefeller. It's MORNING EDITION. Transcript provided by NPR, Copyright National Public Radio.