The richest discovery in the history of mining occurred in 1873. This so-called "Big Bonanza" made _______ the richest man in the world.



Answer :

The correct answer is John William Mackay.

Mackay was one of the four people, called Bonanza Kings, who made a fortune on the discovery, but Mackay was the richest of them, as he owned the biggest share in the mine.



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