In turn, the railroads had a great impact on the steel industry. ... The rapid rise of the steel and railroad industries between the end of the Civil War and the early 1900s spurred the growth of other big businesses, especially in the oil, financial, and manufacturing sectors of the economy.
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Hamilton and Foreign Policy: 1790–1797. Both during Hamilton's tenure as Secretary of the Treasury and for some years after his resignation, he played a key role in developing early American foreign policy. His debut in the realm of international politics occurred in 1789, when the French Revolution erupted in Paris.
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