Mass production of steel, large suspension bridges, steel frame construction in buildings. It allowed impurities to be removed cheaply and easily, enabling steel to be produced in mass quantities.
Some people were against the purchase, they thought president jefferson overstepped his constitutional authority by buying it.
Answer: They lived in lived eastern North America and northern Canada to the Carolinas
Explanation: Hope this helped❤
<span>struggles over the line of succession
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reserve supplies; conscription; general staff; reserve troops