the richest discovery in the history of mining occurred in 1873. this so-called "big bonanza" made the richest man in the world

This so-called "Big Bonanza" made "John William Mackay" the richest man in the world, since the discovery led his business shares to the point where he was valued at roughly 1 billion dollars.

Up the mula ya know: '(: '(: '(: '(: '(