Kublai was the fourth son of Tolui (his second son with Sorghaghtani Beki) and a grandson of Genghis Khan. He succeeded his older brother Möngke as Khagan in 1260, but had to defeat his younger brother Ariq Böke in the Toluid Civil War lasting until 1264. This episode marked the beginning of disunity in the empire. Kublai's real power was limited to China and Mongolia, though as Khagan he still had influence in the Ilkhanate and, to a significantly lesser degree, in the Golden Horde. If one counts the Mongol Empire at that time as a whole, his realm reached from the Pacific to the Black Sea, from Siberia to modern day Afghanistan – one fifth of the world's inhabited land area.
Portrait of Kublai Khan during the Yuan era.
In 1271, Kublai established the Yuan dynasty, which ruled over present-day Mongolia, China, Korea, and some adjacent areas, and assumed the role of Emperor of China. By 1279, the Yuan forces had overcome the last resistance of the Southern Song dynasty, and Kublai became the first non-native Emperor to conquer all of China.
Kublai was the fourth son of Tolui, and his second son with Sorghaghtani Beki. As his grandfather Genghis Khan advised, Sorghaghtani chose a Buddhist Tangut woman as her son's nurse, whom Kublai later honored highly. On his way home after the conquest of the Khwarizmian Empire, Genghis Khan performed a ceremony on his grandsons Möngke and Kublai after their first hunt in 1224 near the Ili River.[9] Kublai was nine years old and with his eldest brother killed a rabbit and an antelope. His grandfather smeared fat from killed animals onto Kublai's middle finger in accordance with a Mongol tradition.
After the Mongol–Jin War, in 1236, Ögedei gave Hebei Province (attached with 80,000 households) to the family of Tolui, who died in 1232. Kublai received an estate of his own, which included 10,000 households. Because he was inexperienced, Kublai allowed local officials free rein. Corruption amongst his officials and aggressive taxation caused large numbers of Chinese peasants to flee, which led to a decline in tax revenues. Kublai quickly came to his appanage in Hebei and ordered reforms. Sorghaghtani sent new officials to help him and tax laws were revised. Thanks to those efforts, many of the people who fled returned.
Kublai Khan was chosen by his many supporters to become the next Great Khan at the Grand Kurultai in the year 1260.
The most prominent, and arguably most influential, component of Kublai Khan's early life was his study and strong attraction to contemporary Chinese culture. Kublai invited Haiyun, the leading Buddhist monk in North China, to his ordo in Mongolia. When he met Haiyun in Karakorum in 1242, Kublai asked him about the philosophy of Buddhism. Haiyun named Kublai's son, who was born in 1243, Zhenjin (True Gold in English). Haiyun also introduced Kublai to the former Taoist and now Buddhist monk, Liu Bingzhong. Liu was a painter, calligrapher, poet, and mathematician, and he became Kublai's advisor when Haiyun returned to his temple in modern Beijing. Kublai soon added the Shanxi scholar Zhao Bi to his entourage. Kublai employed people of other nationalities as well, for he was keen to balance local and imperial interests, Mongol and Turk.
In 1251, Kublai's eldest brother Möngke became Khan of the Mongol Empire, and Khwarizmian Mahmud Yalavach and Kublai were sent to China. Kublai received the viceroyalty over North China and moved his ordo to central Inner Mongolia. During his years as viceroy, Kublai managed his territory well, boosted the agricultural output of Henan, and increased social welfare spendings after receiving Xi'an. These acts received great acclaim from the Chinese warlords and were essential to the building of the Yuan Dynasty. In 1252, Kublai criticized Mahmud Yalavach, who was never highly valued by his Chinese associates, over his cavalier execution of suspects during a judicial review, and Zhao Bi attacked him for his presumptuous attitude toward the throne. Möngke dismissed Mahmud Yalavach, which met with resistance from Chinese Confucian-trained officials.
Painting of Kublai Khan on a hunting expedition, by Chinese court artist Liu Guandao, c. 1280.
In 1253, Kublai was ordered to attack 云南, and he asked the Kingdom of Dali to submit. The ruling Gao family resisted and killed Mongol envoys. The Mongols divided their forces into three. One wing rode eastward into the Sichuan basin. The second column under Subutai's son Uryankhadai took a difficult route into the mountains of western Sichuan. Kublai went south over the grasslands and met up with the first column. While Uryankhadai travelled along the lakeside from the north, Kublai took the capital city of Dali and spared the residents despite the slaying of his ambassadors. Duan Xingzhi, the last king of Dali, was appointed by Möngke Khan as the first local ruler; Duan accepted the stationing of a pacification commissioner there. After Kublai's departure, unrest broke out among certain factions. In 1255 and 1256, Duan Xingzhi was presented at court, where he offered Mengu, the Yuan Emperor Xienzhong, maps of Yunnan and counsels about the vanquishing of the tribes who had not yet surrendered. Duan then led a considerable army to serve as guides and vanguards for the Mongolian army. By the end of 1256, Uryankhadai had completely pacified Yunnan.
Kublai was attracted by the abilities of Tibetan monks as healers. In 1253 he made Drogön Chögyal Phagpa, of the Sakya order, a member of his entourage. Phagpa bestowed on Kublai and his wife, Chabi (Chabui), a Tantric Buddhist initiation. Kublai appointed Buddhist Uyghur Lian Xixian (1231–1280) the head of his pacification commission in 1254. Some officials, who were jealous of Kublai's success, said that he was getting above himself and dreaming of having his own empire by competing with Möngke's capital Karakorum (Хархорум). The Great Khan Möngke sent two tax inspectors, Alamdar (Ariq Böke's close friend and governor in North China) and Liu Taiping, to audit Kublai's officials in 1257. They found fault, listed 142 breaches of regulations, accused Chinese officials and executed some of them, and Kublai's new pacification commission was abolished. Kublai sent a two-man embassy with his wives and then appealed in person to Möngke, who publicly forgave his younger brother and reconciled with him.
Chinese opera flourished during the Mongol Yuan dynasty's rule of China.
The Taoists had obtained their wealth and status by seizing Buddhist temples. Möngke repeatedly demanded that the Taoists cease their denigration of Buddhism and ordered Kublai to end the clerical strife between the Taoists and Buddhists in his territory. Kublai called a conference of Taoist and Buddhist leaders in early 1258. At the conference, the Taoist claim was officially refuted, and Kublai forcibly converted 237 Taoist temples to Buddhism and destroyed all copies of the Taoist texts. Kublai Khan and the Yuan dynasty clearly favored Buddhism, while his counterparts in the Chagatai Khanate, the Golden Horde, and the Ilkhanate later converted to Islam at various times in history – Berke of the Golden Horde being the only Muslim during Kublai's era (his successor did not convert to Islam).
In 1258, Möngke put Kublai in command of the Eastern Army and summoned him to assist with an attack on Sichuan. As he was suffering from gout, Kublai was allowed to stay home, but he moved to assist Möngke anyway. Before Kublai arrived in 1259, word reached him that Möngke had died. Kublai decided to keep the death of his brother secret and continued the attack on Wuhan, near the Yangtze River. While Kublai's force besieged Wuchang, Uryankhadai joined him. The Song Dynasty minister Jia Sidao secretly approached Kublai to propose terms. He offered an annual tribute of 200,000 taels of silver and 200,000 bolts of silk, in exchange for Mongol agreement to the Yangtze River as the frontier between the states. Kublai declined at first but later reached a peace agreement with Jia Sidao.
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