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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Have discover dere one apps an different social sites it is one of d development country all over d world
It turned the tide toward the favor of the North.
Note that I am not 100% sure but i did a lot on this for 2 years so I think it is D the last one
The League of Nations sought to unify Europe. This was to eliminate conflicts between countries within Europe.
