Henry Ford, $199 billion
Henry Ford is one of the most prominent people in American business. The personal fortune that he had was just short of $200 billion. Ford not only started his corporation and was also famous for his revolutionary approach to car production, but he was also a pioneer in business and industry. He set a higher salary for his workers than what was considered average at that time and he developed the concept of the assembly line. It allowed him to create inexpensive cars and to make them affordable for regular people.
https://www.msn.com/en-in/money/photos/the-20-richest-people-of-all-time/ss-BBsg
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Gaddafi was assassinated by USA because he wanted to create currency backed up with gold and start doing oil transactions with it. If he did succeed USA would start spiraling down into recession because they would have nowhere to launder freshly printed dollars.
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However, the richest families are not publicly known.
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