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Andrew Carnegie was born in 1835 in Scotland to a poor weaver.
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Moved to America with his family when he was 13.
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When he was eighteen he was working in Pittsburgh, Pennsylvania, as the private secretary to a railroad official named Thomas Alexander Scott.
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Carnegie left the railroad and started his own company making railroad bridges from iron when he was 30.
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Started his first steel mill when he was 38.
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He controlled a quarter of American iron and steel production.