C-It did not have a large professional middle class.
According to quizlet.com "North: factories, cities, small farms, immigration communities, no need for slavery, a house was the basis for northern power, more railroads<span>South: slave labor, plantations, cotton, few immigrants, senate basis for political power, few railroads"
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Commonly referred to as the "Pennsy," the PRR was headquartered in Philadelphia<span>, Pennsylvania. The PRR was the largest railroad by traffic and revenue in the U.S. for the first half of the twentieth century.</span>
By forming various organizations.
The European Union, for example, unites Europe (Minus Britain these days) under one banner, thus preventing fighting.
A more direct example is the North Atlantic Treaty Organization. NATO protects the "North Atlantic" and Europe from terrorists and invading countries by using the combined military strength of multiple nations.
The 19th amendment granted women the right to vote.
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