Gold Mining, Past and Present: What Does the Future Hold?
Por um escritor misterioso
Descrição
The United States emerged as a major economic power following the Gold Rush of 1849, during which miners extracted more than 750,000 pounds of gold, according to History.com. In those days, gold was uncovered by manual labor with a pick and shovel, a risky and dangerous proposition with uncertain profit even with a seemingly abundant supply.
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