Early Mongol rule
The government system during the early years of the Mongol conquest was a synthesis of Mongol military administration and a gradual return to Chinese traditions in those domains ruled by former subjects of the Jin state. The most important office or function in Mongol administration was that of the darughatchi (seal bearer), whose powers were at first all-inclusive; only gradually were subfunctions entrusted to specialized officials in accordance with Chinese bureaucratic tradition. This re-feudalization of northern China, along Mongol lines with a slight understructure of Chinese-type bureaucrats, lasted for many years.
The central administration of Mongol China was largely the creation of Yelü Chucai, originally a Jin state official of Khitan extraction who had acquired a profound Chinese scholarship and who had become one of Genghis Khan’s trusted advisers. Yelü continued to serve under Ögödei, who became grand khan in 1229, and persuaded him to establish a formal bureaucracy and to replace indiscriminate levies with a rationalized taxation system along Chinese lines. An important part of Yelü’s reforms was the creation of the Central Secretariat (Zhongshu Sheng), which centralized the civilian administration and achieved some continuity. The territory was divided into provinces, and the provincial administrations were responsible for regularized taxation. The people had to pay a land tax and a poll tax, either in kind (textiles and grain) or in silver. Merchants had to pay a sales tax. Monopolies on wine, vinegar, salt, and mining products were also introduced. All this enabled the treasuries of the Mongol court to accumulate considerable wealth.
In spite of the success of his economic policy, Yelü’s influence decreased during his later years. One reason was bitter opposition from the Mongol feudatories and from those Chinese, Juchen, and Khitan nobles who were used to ruling independently in their appanages, which they exploited at will. Also, Ögödei himself apparently lost interest in the internal conditions of the Mongol dominion in China. During the 1230s Muslims from the Middle East had already begun to fill the higher positions at the Mongol court, and their ruthless exploitation of the Chinese created widespread resentment of Mongol rule. A relapse into feudal anarchism seemed inevitable, and Yelü’s reforms fell into temporary abeyance. China was ruled more or less like a colony by the foreigners and their allies.