What replaced the feelings of sectionalism in the early 1800s?

It was "nationalism" that replaced the feelings of sectionalism in the early 1800s, since this was a time of great physical and emotional growth for the US, in which the country started to feel more like a single "unit".

Suleiman's accomplishments while ruling as the Ottoman Sultan were by no means limited to his military expansion. He was an excellent leader and helped to transform the Ottoman Empire into an economic powerhouse. He reformed the law and created a single legal code.

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