Keep it brief! A paragraph is enough for the major civilizations. A sentence is plenty for any minor cultures which might be part of the adventure. Add other cultures not in your main storytelling area in one additional sentence.
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For each group, limit your answer to one paragraph, and remember to include one sentence on their opinion of “others”. Detail other cultures not in your main storytelling area in one additional sentence. For example, who are they? What do they look like? Start with a little bit of history, and then turn that into an attitude and a need.
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