Mansa Musa: Richest Man Ever

That's a picture of Mansa Musa, the empeor of Mali in the 14th century. He is the richest man in the world, "after adjusting for inflation," according to this article in the Huffington Post. He was worth over 400 billion, making him richer than Bill Gates.

Thanks to my colleague, Larua McBride, for sending me the link.