The War of 1812 had a profound impact on America, leading to the nation's first major victory in New Orleans and the eventual declaration of the Monroe Doctrine, which asserted American independence from European influence. As the nation continued to grow and develop, it became clear that a national economy was emerging, with infrastructure projects like the Erie Canal and the development of steam technology transforming American life. However, the issue of slavery remained unresolved, a lingering sin that would continue to plague the nation.
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