<span>Civilizations wanted to settle and build cities and/or outposts along trading routes for so it would be easy to acquire what they didn't have, and sell what they did, and gain economic prosperity. These became the most desirable and wealthy spots, and thus were fought over in wars.</span>
Explanation:
You are able to bounce answers and ideas off each other and learn things you didn't know. You are able to take more notes.
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