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This was the dynasty that Marco Polo visited china ans introduced it to Europe.
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It was formed by an illiterate mongol that over-through the old dynasty.
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There were droughts that caused people to believe this dynasty lost it's mandate from heaven and was overthrown.
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They built a wall around Nanjing. It was an important city then.
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There was a bad economy. Along with that there were natural disasters that caused them to lose power.
