Known to be the richest person who has ever lived, Mansa Musa's interests consisted of building entire communities by joining alliances with neighboring kingdoms in ways Africa had never seen. This leader of the Mali empire built schools, homes, and other institutions in the 14th century that brought in trade from across the land in droves causing Timbuktu to practically drip in gold. His net worth was estimated to be around $400 billion.
*original canvas*