The American oil magnate John D. Rockefeller became the world's first confirmed U.S. dollar billionaire in 1916; as of 2017, there are over 2,000 U.S. dollar billionaires worldwide, with a combined wealth of over US $7.6 trillion.
The American oil magnate John D. Rockefeller became the world's first confirmed U.S. dollar billionaire in 1916. There are over 2,000 U.S. dollar billionaires worldwide. This was with a combined wealth of over US $7.6 trillion. This was as of 2017.