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  Chinggis Khan means "universal leader" and Mongol was united under him.
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  China was the most difficult and extended of the Mongo's conquests. It took seventy years.
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  Mongol expanded its territory from the Pacific coast of Asia to Eastern Europe.
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  Mongol's takeover in Persia was more abrupt than the extended process of conquest in China, consisted of only two assualts.
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  Mongol armies were brutal, because they were armed with the catapults and battering rams adopted from Chinese or Muslim sources.
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  Mongol armies destroyed Polish, German and Hugarian forces, but the death of the Greak Khan Ogodei required them to return to Mongol.
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  It put an end to the Abbasid caliphate. More than 200, 000 people were massacred.
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  A Failure due to a Typhoon
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  His policies were based on the values of a benevolent Chinese emperor. He imporved roads, built canals, lowered some taxes and patronized scholars and artists.
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  The Mongols practiced Chinese administrative practices, techniques of taxation, and their poastal system. Also, the name "Yuan" is also Chinese, suggesting a new beginning in Chinese history.
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  A failure due to a typhoon
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  It was an end of Mongol rule in China.