Answer: In ancient times, the geographic features of China insulated the country from the rest of the world. Natural barriers,such as mountains,deserts,rivers,and seas,made travel to and from China challengeing....They made the spread of ideas and goods between the ancient Chinese and others outside the region difficult.
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The Civil War started because of uncompromising differences between the free and slave states over the power of the national government to prohibit slavery in the territories that had not yet become states.
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