Question

who is the first millionaire in the world? ​

Answer 1

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John D. Rockefeller

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John D. Rockefeller is held to be the world's first official billionaire, achieving that status in 1916 largely through his ownership of Standard Oil. From that point nearly a century ago, wealth has multiplied to the point where the richest men in the world top out at around $100 billion.

Answer 2

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John D. Rockefeller