Yuan


 * the mongols were culturally different fom the chinese which made it very difficult to rule them.
 * the mongols and the chinese spoke different languages...many different background and customs to overcome.
 * They spent excessively and they restricted trade which depleted china economically.
 * Canals and palaces were built, which required the peasants to both supply more tax money and to leace their homes to build them.
 * They launched campaigns against Japan which were not successful and destroyed many chinese ships.
 * they forbid the chinese to learn to speak different languages
 * They made it very difficult to trade and travel outside of china which limited the chinese and made them unhappy
 * It was the first of only two times that the entire area of China was ruled by foreigners, in this case, the Mongols.