Eastern Europe I think.... not 100% sure
Answer:
Instead of coming to terms with each other in a suitable fashion, sectionalism drove each person to be "a member of their state", instead of being a "american". This led to conflicting interests, which boiled down to war. Each person went to war for reasons of their state, instead of what Lincoln wanted, the preservation of the Union.
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D because not all Indians spoke the same language, but instead had millions of different languages and cultural ways throughout the americas...and thats the only answer that said that they had hundreds of languages and such...
