President. in 1882. an Irish immigrant named Marcus Daly set off an explosion that shook the world. It happened 300 feet under the ground. near Warm Springs Creek. 26 miles west of Butte. MT. When the dust settled. Daly saw before him the shiny ore of the largest copper deposit ever known. The rich copper vein transformed the American economy. It made America the worlds largest copper exporter. And it inaugurated an economic boom for my home State that lasted for decades. It also enriched many parts of America. Thousands of immigrants made the boom happen. They came from Ireland and Italy. Canada and Scandinavia.
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immigrant immigrants