Kublai Khan (23 September 1215 – 18 February 1294), also known by his temple name as the Emperor Shizu of Yuan and his regnal name Setsen Khan, was the founder and first emperor of the Mongol-led Yuan dynasty of China. He proclaimed the dynastic name "Great Yuan" in 1271, and ruled Yuan China until his death in 1294. Kublai was the second son of Tolui by his chief wife Sorghaghtani Beki, and a gra Kublai… Most of the Yuan domains were administered as provinces, also translated as the "Branch Secretariat", each with a governor and vice-governor. This included China proper, Manchuria, Mongolia, and a special Zhendong branch Secretariat that extended into the Korean Peninsula. The Central Region (Chinese: 腹裏) was separate from the rest, consisting of much of present-day North China. It was considered the most important region of the dynasty and was directly governed by the Zhongshu Sheng at Dadu. Tibet was governed by another top-level administrative department called the Bureau of Buddhist and Tibetan Affairs. Kublai promoted economic growth by rebuilding the Grand Canal, repairing public buildings, and extending highways. However, his domestic policy included some aspects of the old Mongol living traditions, and as his reign continued, these traditions would clash increasingly frequently with traditional Chinese economic and social culture. Kublai decreed that partner merchants of the Mongols should be subject to taxes in 1262 and set up the Office of Market Taxes to supervise them in 1268. After the Mongol conquest of the Song, the Muslim, Uyghur, and Chinese merchants expanded their operations to the South China Sea and the Indian Ocean. In 1286, maritime trade was put under the Office of Market Taxes. The main source of revenue for the government was the monopoly of salt production. The Mongol administration had issued paper currencies from 1227 on. In August 1260, Kublai created the first unified paper currency called Jiaochao; bills were circulated throughout the Yuan domain with no expiration date. To guard against devaluation, the currency was convertible with silver and gold, and the government accepted tax payments in paper currency. In 1273, Kublai issued a new series of state-sponsored bills to finance his conquest of the Song, although eventually, a lack of fiscal discipline and inflation turned this move into an economic disaster. It was required to pay only in the form of paper money. To ensure its use, Kublai's government confiscated gold and silver from private citizens and foreign merchants, but traders received government-issued notes in…