Answer:
When he was only 30 years old, in 1865, he left the railroad company to focus his attention on his growing empire. Over time, his main focus became the steel industry, and his strategy revolutionized steel production and fueled the growth of the American economy.
Explanation:
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Answer:
what are the causes of rural migration during the period
Explanation:
translate from english to spanish ja
True is was about 12 foot tall and 4 foot wide mass of reinforced concrete