Who was the first-ever billionaire in US dollars?

Question: Who was the first-ever billionaire in US dollars?

The given options are as follows:

  • Cornelius Vanderbilt
  • John D. Rockefeller
  • Andrew Carnegie

The correct answer is: John D. Rockefeller

Fact: Rockefeller, who led the Standard Oil business empire, remains the wealthiest person in modern history when adjusted for inflation.

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