For more than a century, steel mills churning along Pittsburgh's three rivers helped define the region as one of the world's largest steel-making capitals until the collapse of the industry in the 1980s.Read more on NewsOK.com
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Sun, 05/26/2019 - 2:48am
For more than a century, steel mills churning along Pittsburgh's three rivers helped define the region as one of the world's largest steel-making capitals until the collapse of the industry in the 1980s.Read more on NewsOK.com