Under the leadership of Mansa Musa, 1312 - 1337, Mali became famous for its trade in gold and the kingdom became incredibly prosperous. Some historians remember Mansa Musa as the ‘wealthiest man ...

This was the reality for Mansa Musa, whose riches dwarf those of current world leaders. His immense fortune begs the question: How did he amass such wealth? Donald Trump's cabinet is worth 160 ...