Mongol Empire - wikipedia Mongol Empire Not to be confused with Mughal Empire. Mongol Empire Ikh Mongol Uls 1206 -- 1368 Expansion of the Mongol Empire 1206 -- 1294 superimposed on a modern political map of Eurasia Status Nomadic empire Capital 1206 -- 1235 : Avarga 1235 -- 1260 : Karakorum 1260 -- 1368 : Khanbaliq ( Dadu ) Common languages Mongolian Turkic Chinese Persian and other languages Religion Initially Tengrism Shamanism Later Islam Buddhism Nestorianism Government Elective monarchy Later also hereditary Great Khan 1206 -- 1227 Genghis Khan 1229 -- 1241 Ögedei Khan 1246 -- 1248 Güyük Khan 1251 -- 1259 Möngke Khan 1260 -- 1294 Kublai Khan ( nominal ) 1333 -- 1368 Toghan Temür Khan ( nominal ) Legislature Kurultai Genghis Khan proclaims the Mongol Empire 1206 Death of Genghis Khan 1227 Pax Mongolica 1250 -- 1350 Empire fragments 1260 -- 1294 Fall of Yuan dynasty 1368 Collapse of the Chagatai Khanate 1687 Area 1206 ( unification of Mongolia ) 4,000,000 km ( 1,500,000 sq mi ) 1227 ( Genghis Khan 's death ) 13,500,000 km ( 5,200,000 sq mi ) 1294 ( Kublai 's death ) 23,500,000 km ( 9,100,000 sq mi ) 1309 ( last formal reunification ) 24,000,000 km ( 9,300,000 sq mi ) Currency Various Preceded by Succeeded by Khamag Mongol Khwarazmian Empire Qara Khitai Jīn dynasty Song dynasty Western Xia Abbasid Caliphate Nizari Ismaili state Kievan Rus ' Volga Bulgaria Cumania Alania Kingdom of Dali Kimek Khanate Goryeo Chagatai Khanate Golden Horde Ilkhanate Yuan dynasty Northern Yuan dynasty Timurid Empire Anatolian Beyliks Mamluk Sultanate Kingdom of Poland Grand Duchy of Lithuania Ming dynasty Joseon Jump up ^ Karakorum was founded in 1220 and served as capital from 1235 to 1260. Jump up ^ Following the death of Möngke Khan in 1259, no one city served as capital. Khanbaliq ( Dadu ), modern - day Beijing, was the Yuan capital between 1271 and 1368. Jump up ^ Including coins such as dirhams and paper currencies based on silver ( sukhe ) or silk, or the later small amounts of Chinese coins and paper Chao currency of the Yuan dynasty. Mongol invasions and conquests Asia Burma First Ngasaunggyan Pagan Second Central Asia Qara Khitai Khwarezm China Western Xia Jin Song Japan Bun'ei Kōan Vietnam Bạch Đằng Other invasions India Java Korea Tibet Europe Rus ' Volga Bulgaria ( Samara Bend, Bilär ) Durdzuketia Poland ( first ) Hungary ( first ) Bulgaria and Serbia Latin Empire Poland ( second ) Thrace Hungary ( second ) Poland ( third ) Serbia ( second ) Near East Khwarezmia Armenia Georgia Anatolia ( Köse Dağ ) Baghdad Levant Palestine ( Ain Jalut ) The Mongol Empire ( Mongolian : Mongolyn Ezent Güren listen ( help info ) ; Mongolian Cyrillic : Монголын эзэнт гүрэн ; ( mɔŋɡ ( ɔ ) ɮˈiːŋ ɛt͡sˈɛnt ˈɡurəŋ ) ; also Орда ( `` the Horde '' ) in Russian chronicles ) existed during the 13th and 14th centuries and was the largest contiguous land empire in history. Originating in the steppes of Central Asia, the Mongol Empire eventually stretched from Eastern Europe and parts of Central Europe to the Sea of Japan, extending northwards into Siberia, eastwards and southwards into the Indian subcontinent, Indochina and the Iranian Plateau ; and westwards as far as the Levant and the Carpathian Mountains. The Mongol Empire emerged from the unification of several nomadic tribes in the Mongol homeland under the leadership of Genghis Khan, whom a council proclaimed ruler of all the Mongols in 1206. The empire grew rapidly under his rule and that of his descendants, who sent invasions in every direction. The vast transcontinental empire connected the East with the West with an enforced Pax Mongolica, allowing the dissemination and exchange of trade, technologies, commodities and ideologies across Eurasia. The empire began to split due to wars over succession, as the grandchildren of Genghis Khan disputed whether the royal line should follow from his son and initial heir Ögedei or from one of his other sons, such as Tolui, Chagatai, or Jochi. The Toluids prevailed after a bloody purge of Ögedeid and Chagataid factions, but disputes continued among the descendants of Tolui. A key reason for the split was the dispute over whether the Mongol Empire would become a sedentary, cosmopolitan empire, or would stay true to their nomadic and steppe lifestyle. After Möngke Khan died ( 1259 ), rival kurultai councils simultaneously elected different successors, the brothers Ariq Böke and Kublai Khan, who fought each other in the Toluid Civil War ( 1260 -- 1264 ) and also dealt with challenges from the descendants of other sons of Genghis. Kublai successfully took power, but civil war ensued as he sought unsuccessfully to regain control of the Chagatayid and Ögedeid families. During the reigns of Genghis and Ögedei, the Mongols suffered the occasional defeat when a less skilled general was given a command. The Siberian Tumads defeated the Mongol forces under Borokhula around 1215 -- 1217 ; Jalal al - Din defeated Shigi - Qutugu at the Battle of Parwan ; and the Jin generals Heda and Pu'a defeated Dolqolqu in 1230. In each case, the Mongols returned shortly after with a much larger army led by one of their best generals, and were invariably victorious. The Battle of Ain Jalut in Galilee in 1260 marked the first time that the Mongols would not return to immediately avenge a defeat, due to a combination of the death of Möngke Khan, the Toluid Civil War between Arik Boke and Khubilai, and Berke of the Golden Horde attacking Hulegu in Persia. Though the Mongols launched many more invasions of the Levant, briefly occupying it and raiding as far as Gaza after a decisive victory at the Battle of Wadi al - Khazandar in 1299, they withdrew due to various geopolitical factors. By the time of Kublai 's death in 1294, the Mongol Empire had fractured into four separate khanates or empires, each pursuing its own separate interests and objectives : The Golden Horde khanate in the northwest. The Chagatai Khanate in Central Asia. The Ilkhanate in the southwest. The Yuan dynasty in the east based in modern - day Beijing. In 1304, the three western khanates briefly accepted the nominal suzerainty of the Yuan dynasty, but in 1368 the Han Chinese Ming dynasty took over the Mongol capital. The Genghisid rulers of the Yuan retreated to the Mongolian homeland and continued to rule there as the Northern Yuan dynasty. The Ilkhanate disintegrated in the period 1335 -- 1353. The Golden Horde had broken into competing khanates by the end of the 15th century whilst the Chagatai Khanate lasted in one form or another until 1687. Contents 1 Name 2 History 2.1 Pre-empire context 2.2 Rise of Genghis Khan 2.3 Early organization 2.3. 1 Push into Central Asia 2.3. 2 Religious policies 2.4 Death of Genghis Khan and expansion under Ögedei ( 1227 -- 1241 ) 2.4. 1 Invasions of Kievan Rus ' and central China 2.4. 2 Push into central Europe 2.5 Post-Ögedei power struggles ( 1241 -- 1251 ) 2.5. 1 Death of Güyük ( 1248 ) 2.6 Rule of Möngke Khan ( 1251 -- 1259 ) 2.6. 1 Administrative reforms 2.6. 2 New invasions of the Middle East and Southern China 2.6. 3 Death of Möngke Khan ( 1259 ) 2.7 Disunity 2.7. 1 Dispute over succession 2.7. 2 Mongolian Civil War 2.7. 3 Campaigns of Kublai Khan ( 1264 -- 1294 ) 2.8 Disintegration into competing entities 2.8. 1 Development of the khanates 2.9 Relict states of the Mongol Empire 3 Military organization 4 Society 4.1 Law and governance 4.2 Religions 4.3 Arts and literature 4.4 Mail system 5 Silk Road 6 Legacy 7 See also 8 References 8.1 Citations 8.2 Sources 9 Further reading 10 External links Name What is referred to in English as the Mongol Empire was called the Ikh Mongol Uls ( ikh : `` great '', uls : `` state '' ; Great Mongolian State ). In the 1240s, one of Genghis 's descendants, Güyük Khan, wrote a letter to Pope Innocent IV which used the preamble `` Dalai ( great / oceanic ) Khagan of the great Mongolian state ( ulus ) ''. After the succession war between Kublai Khan and his brother Ariq Böke, Ariq limited Kublai 's power to the eastern part of the empire. Kublai officially issued an imperial edict on 18 December 1271 to name the country Great Yuan ( Dai Yuan, or Dai Ön Ulus ) to establish the Yuan dynasty. Some sources state that the full Mongolian name was Dai Ön Yehe Monggul Ulus. History Pre-empire Context Main article : Proto - Mongols Mongolian tribes during the Khitan Liao dynasty ( 907 -- 1125 ) Eurasia on the eve of the Mongol invasions, c. 1200 The area around Mongolia, Manchuria, and parts of North China had been controlled by the Liao dynasty since the 10th century. In 1125, the Jin dynasty founded by the Jurchens overthrew the Liao dynasty and attempted to gain control over former Liao territory in Mongolia. In the 1130s the Jin dynasty rulers, known as the Golden Kings, successfully resisted the Khamag Mongol confederation, ruled at the time by Khabul Khan, great - grandfather of Temujin ( Genghis Khan ). The Mongolian plateau was occupied mainly by five powerful tribal confederations ( khanlig ) : Keraites, Khamag Mongol, Naiman, Mergid, and Tatar. The Jin emperors, following a policy of divide and rule, encouraged disputes among the tribes, especially between the Tatars and the Mongols, in order to keep the nomadic tribes distracted by their own battles and thereby away from the Jin. Khabul 's successor was Ambaghai Khan, who was betrayed by the Tatars, handed over to the Jurchen, and executed. The Mongols retaliated by raiding the frontier, resulting in a failed Jurchen counter-attack in 1143. In 1147, the Jin somewhat changed their policy, signing a peace treaty with the Mongols and withdrawing from a score of forts. The Mongols then resumed attacks on the Tatars to avenge the death of their late khan, opening a long period of active hostilities. The Jin and Tatar armies defeated the Mongols in 1161. During the rise of the Mongol Empire in the 13th century, the usually cold, parched steppes of Central Asia enjoyed their mildest, wettest conditions in more than a millennium. It is thought that this resulted in a rapid increase in the number of war horses and other livestock which significantly enhanced Mongol military strength. Rise of Genghis Khan Main articles : Khamag Mongol and Genghis Khan Genghis Khan, National Palace Museum in Taipei, Taiwan Known during his childhood as Temujin, Genghis Khan was a son of a Mongol chieftain. As a young man he rose very rapidly by working with Toghrul Khan of the Kerait. The most powerful Mongol leader at the time was Kurtait ; he was given the Chinese title `` Wang '', which means Prince. Temujin went to war with Wang Khan. After Temujin defeated Wang Khan he gave himself the name Genghis Khan. He then enlarged his Mongol state under himself and his kin. The term Mongol came to be used to refer to all Mongolic speaking tribes under the control of Genghis Khan. His most powerful allies were his father 's friend, Khereid chieftain Wang Khan Toghoril, and Temujin 's childhood anda ( friend ) Jamukha of the Jadran clan. With their help, Temujin defeated the Merkit tribe, rescued his wife Börte, and went on to defeat the Naimans and the Tatars. Temujin forbade looting of his enemies without permission, and he implemented a policy of sharing spoils with his warriors and their families instead of giving it all to the aristocrats. These policies brought him into conflict with his uncles, who were also legitimate heirs to the throne ; they regarded Temujin not as a leader but as an insolent usurper. This dissatisfaction spread to his generals and other associates, and some Mongols who had previously been allies broke their allegiance. War ensued, and Temujin and the forces still loyal to him prevailed, defeating the remaining rival tribes between 1203 and 1205 and bringing them under his sway. In 1206, Temujin was crowned as the khagan of the Yekhe Mongol Ulus ( Great Mongol State ) at a kurultai ( general assembly / council ). It was there that he assumed the title of Genghis Khan ( universal leader ) instead of one of the old tribal titles such as Gur Khan or Tayang Khan, marking the start of the Mongol Empire. Early organization Genghis Khan ascended the throne in the Yeke Quriltay region in the Onan river, from the Jami ' al - tawarikh. Genghis Khan introduced many innovative ways of organizing his army : for example dividing it into decimal subsections of arbans ( 10 soldiers ), zuuns ( 100 ), Mingghans ( 1000 ), and tumens ( 10,000 ). The Kheshig, the imperial guard, was founded and divided into day ( khorchin torghuds ) and night ( khevtuul ) guards. Genghis rewarded those who had been loyal to him and placed them in high positions, as heads of army units and households, even though many of them came from very low - ranking clans. Compared to the units he gave to his loyal companions, those assigned to his own family members were relatively few. He proclaimed a new code of law of the empire, Ikh Zasag or Yassa ; later he expanded it to cover much of the everyday life and political affairs of the nomads. He forbade the selling of women, theft, fighting among the Mongols, and the hunting of animals during the breeding season. He appointed his adopted brother Shigi - Khuthugh as supreme judge ( jarughachi ), ordering him to keep records of the empire. In addition to laws regarding family, food, and the army, Genghis also decreed religious freedom and supported domestic and international trade. He exempted the poor and the clergy from taxation. He also encouraged literacy, adopting the Uyghur script, which would form the Uyghur - Mongolian script of the empire, and he ordered the Uyghur Tatatunga, who had previously served the khan of Naimans, to instruct his sons. Push into Central Asia Main article : Mongol invasion of Central Asia Mongol Empire circa 1207 Genghis quickly came into conflict with the Jin dynasty of the Jurchens and the Western Xia of the Tanguts in northern China. He also had to deal with two other powers, Tibet and Qara Khitai. Towards the west he moved into Central Asia, devastating Transoxiana and eastern Persia, then raiding into Kievan Rus ' ( a predecessor state of Russia, Belarus, and Ukraine ) and the Caucasus. Before his death, Genghis Khan divided his empire among his sons and immediate family, making the Mongol Empire the joint property of the entire imperial family who, along with the Mongol aristocracy, constituted the ruling class. Religious policies Prior to the three western khanates ' adoption of Islam, Genghis Khan and a number of his Yuan successors placed restrictions on religious practices they saw as alien. Muslims, including Hui, and Jews, were collectively referred to as Huihui. Muslims were forbidden from Halal or Zabiha butchering, while Jews were similarly forbidden from Kashrut or Shehita butchering. Referring to the conquered subjects as `` our slaves, '' Genghis Khan demanded they no longer be able to refuse food or drink, and imposed restrictions on slaughter. Muslims had to slaughter sheep in secret. Among all the ( subject ) alien peoples only the Hui - hui say `` we do not eat Mongol food ''. ( Cinggis Qa'an replied : ) `` By the aid of heaven we have pacified you ; you are our slaves. Yet you do not eat our food or drink. How can this be right ? '' He thereupon made them eat. `` If you slaughter sheep, you will be considered guilty of a crime. '' He issued a regulation to that effect... ( In 1279 / 1280 under Qubilai ) all the Muslims say : `` if someone else slaughters ( the animal ) we do not eat ''. Because the poor people are upset by this, from now on, Musuluman ( Muslim ) Huihui and Zhuhu ( Jewish ) Huihui, no matter who kills ( the animal ) will eat ( it ) and must cease slaughtering sheep themselves, and cease the rite of circumcision. Genghis Khan arranged for the Chinese Taoist master Qiu Chuji to visit him in Afghanistan, and also gave his subjects the right to religious freedom, despite his own shamanistic beliefs. Death of Genghis Khan and expansion under Ögedei ( 1227 -- 1241 ) Main article : Mongol invasions and conquests Coronation of Ögedei Khan in 1229 as the successor of Genghis Khan. By Rashid al - Din, early 14th century. Genghis Khan died on 18 August 1227, by which time the Mongol Empire ruled from the Pacific Ocean to the Caspian Sea -- an empire twice the size of the Roman Empire or the Muslim Caliphate at their height. Genghis named his third son, the charismatic Ögedei, as his heir. According to Mongol tradition, Genghis Khan was buried in a secret location. The regency was originally held by Ögedei 's younger brother Tolui until Ögedei 's formal election at the kurultai in 1229. Among his first actions Ögedei sent troops to subjugate the Bashkirs, Bulgars, and other nations in the Kipchak - controlled steppes. In the east, Ögedei 's armies re-established Mongol authority in Manchuria, crushing the Eastern Xia regime and the Water Tatars. In 1230, the great khan personally led his army in the campaign against the Jin dynasty of China. Ögedei 's general Subutai captured the capital of Emperor Wanyan Shouxu in the siege of Kaifeng in 1232. The Jin dynasty collapsed in 1234 when the Mongols captured Caizhou, the town to which Wanyan Shouxu had fled. In 1234, three armies commanded by Ögedei 's sons Kochu and Koten and the Tangut general Chagan invaded southern China. With the assistance of the Song dynasty the Mongols finished off the Jin in 1234. Many Han Chinese and Khitan defected to the Mongols to fight against the Jin. Two Han Chinese leaders, Shi Tianze, Liu Heima ( 劉 黑馬, Liu Ni ), and the Khitan Xiao Zhala defected and commanded the 3 Tumens in the Mongol army. Liu Heima and Shi Tianze served Ogödei Khan. Liu Heima and Shi Tianxiang led armies against Western Xia for the Mongols. There were four Han Tumens and three Khitan Tumens, with each Tumen consisting of 10,000 troops. The Yuan dynasty created a Han army 漢 軍 from Jin defectors, and another of ex-Song troops called the Newly Submitted Army 新 附 軍. In the West Ögedei 's general Chormaqan destroyed Jalal ad - Din Mingburnu, the last shah of the Khwarizmian Empire. The small kingdoms in southern Persia voluntarily accepted Mongol supremacy. In East Asia, there were a number of Mongolian campaigns into Goryeo Korea, but Ögedei 's attempt to annex the Korean Peninsula met with little success. Gojong, the king of Goryeo, surrendered but later revolted and massacred Mongol darughachis ( overseers ) ; he then moved his imperial court from Gaeseong to Ganghwa Island. As the empire grew, Ögedei established a Mongol capital at Karakorum in northwestern Mongolia. Invasions of Kievan Rus ' and Central China Main articles : Mongol invasion of Rus ' and Mongol invasion of China See also : Mongol invasions of India, Mongol invasions of Korea, and Mongol conquest of Tibet The sack of Suzdal by Batu Khan in 1238, miniature from a 16th - century chronicle Meanwhile, in an offensive action against the Song dynasty, Mongol armies captured Siyang - yang, the Yangtze and Sichuan, but did not secure their control over the conquered areas. The Song generals were able to recapture Siyang - yang from the Mongols in 1239. After the sudden death of Ögedei 's son Kochu in Chinese territory the Mongols withdrew from southern China, although Kochu 's brother Prince Koten invaded Tibet immediately after their withdrawal. Batu Khan, another grandson of Genghis Khan, overran the territories of the Bulgars, the Alans, the Kypchaks, Bashkirs, Mordvins, Chuvash, and other nations of the southern Russian steppe. By 1237 the Mongols were encroaching upon Ryazan, the first Kievan Rus ' principality they were to attack. After a three - day siege involving fierce fighting, the Mongols captured the city and massacred its inhabitants. They then proceeded to destroy the army of the Grand Principality of Vladimir at the Battle of the Sit River. The Mongols captured the Alania capital Maghas in 1238. By 1240, all Kievan Rus ' had fallen to the Asian invaders except for a few northern cities. Mongol troops under Chormaqan in Persia connecting his invasion of Transcaucasia with the invasion of Batu and Subutai, forced the Georgian and Armenian nobles to surrender as well. Giovanni de Plano Carpini, the pope 's envoy to the Mongol great khan, travelled through Kiev in February 1246 and wrote : They ( the Mongols ) attacked Russia, where they made great havoc, destroying cities and fortresses and slaughtering men ; and they laid siege to Kiev, the capital of Russia ; after they had besieged the city for a long time, they took it and put the inhabitants to death. When we were journeying through that land we came across countless skulls and bones of dead men lying about on the ground. Kiev had been a very large and thickly populated town, but now it has been reduced almost to nothing, for there are at the present time scarce two hundred houses there and the inhabitants are kept in complete slavery. Despite the military successes, strife continued within the Mongol ranks. Batu 's relations with Güyük, Ögedei 's eldest son, and Büri, the beloved grandson of Chagatai Khan, remained tense and worsened during Batu 's victory banquet in southern Kievan Rus '. Nevertheless, Güyük and Buri could not do anything to harm Batu 's position as long as his uncle Ögedei was still alive. Ögedei continued with offensives into the Indian subcontinent, temporarily investing Uchch, Lahore, and Multan of the Delhi Sultanate and stationing a Mongol overseer in Kashmir, though the invasions into India eventually failed and were forced to retreat. In northeastern Asia, Ögedei agreed to end the conflict with Goryeo by making it a client state and sent Mongolian princesses to wed Goryeo princes. He then reinforced his keshig with the Koreans through both diplomacy and military force. Push into Central Europe Main article : Mongol invasion of Europe The battle of Liegnitz, 1241. From a medieval manuscript of the Hedwig legend. The advance into Europe continued with Mongol invasions of Poland and Hungary. When the western flank of the Mongols plundered Polish cities, a European alliance among the Poles, the Moravians, and the Christian military orders of the Hospitallers, Teutonic Knights and the Templars assembled sufficient forces to halt, although briefly, the Mongol advance at Legnica. The Hungarian army, their Croatian allies and the Templar Knights were beaten by Mongols at the banks of the Sajo River on 11 April 1241. Before Batu 's forces could continue on to Vienna and northern Albania, news of Ögedei 's death in December 1241 brought a halt to the invasion. As was customary in Mongol military tradition, all princes of Genghis 's line had to attend the kurultai to elect a successor. Batu and his western Mongol army withdrew from Central Europe the next year. Post-ögedei power struggles ( 1241 -- 1251 ) Following the Great Khan Ögedei 's death in 1241, and before the next kurultai, Ögedei 's widow Töregene took over the empire. She persecuted her husband 's Khitan and Muslim officials and gave high positions to her own allies. She built palaces, cathedrals, and social structures on an imperial scale, supporting religion and education. She was able to win over most Mongol aristocrats to support Ögedei 's son Güyük. But Batu, ruler of the Golden Horde, refused to come to the kurultai, claiming that he was ill and that the Mongolian climate was too harsh for him. The resulting stalemate lasted more than four years and further destabilized the unity of the empire. Batu Khan consolidates the Golden Horde When Genghis Khan 's youngest brother Temüge threatened to seize the throne, Güyük came to Karakorum to try to secure his position. Batu eventually agreed to send his brothers and generals to the kurultai convened by Töregene in 1246. Güyük by this time was ill and alcoholic, but his campaigns in Manchuria and Europe gave him the kind of stature necessary for a great khan. He was duly elected at a ceremony attended by Mongols and foreign dignitaries from both within and without the empire -- leaders of vassal nations, representatives from Rome, and other entities who came to the kurultai to show their respects and conduct diplomacy. Güyük Khan demanding Pope Innocent IV 's submission. The letter was written in Persian. Güyük took steps to reduce corruption, announcing that he would continue the policies of his father Ögedei, not those of Töregene. He punished Töregene 's supporters, except for governor Arghun the Elder. He also replaced young Qara Hülëgü, the khan of the Chagatai Khanate, with his favorite cousin Yesü Möngke, to assert his newly conferred powers. He restored his father 's officials to their former positions and was surrounded by Uyghur, Naiman and Central Asian officials, favoring Han Chinese commanders who had helped his father conquer Northern China. He continued military operations in Korea, advanced into Song China in the south, and into Iraq in the west, and ordered an empire - wide census. Güyük also divided the Sultanate of Rum between Izz - ad - Din Kaykawus and Rukn ad - Din Kilij Arslan, though Kaykawus disagreed with this decision. Not all parts of the empire respected Güyük 's election. The Hashshashins, former Mongol allies whose Grand Master Hasan Jalalud - Din had offered his submission to Genghis Khan in 1221, angered Güyük by refusing to submit. Instead he murdered the Mongol generals in Persia. Güyük appointed his best friend 's father Eljigidei as chief commander of the troops in Persia and gave them the task of both reducing the strongholds of the Assassins Muslim movement and conquering the Abbasids at the center of the Islamic world, Iran and Iraq. Death of Güyük ( 1248 ) In 1248, Güyük raised more troops and suddenly marched westwards from the Mongol capital of Karakorum. The reasoning was unclear. Some sources wrote that he sought to recuperate at his personal estate, Emyl ; others suggested that he might have been moving to join Eljigidei to conduct a full - scale conquest of the Middle East, or possibly to make a surprise attack on his rival cousin Batu Khan in Russia. Suspicious of Güyük 's motives, Sorghaghtani Beki, the widow of Genghis 's son Tolui, secretly warned her nephew Batu of Güyük 's approach. Batu had himself been traveling eastwards at the time, possibly to pay homage, or perhaps with other plans in mind. Before the forces of Batu and Güyük met, Güyük, sick and worn out by travel, died en route at Qum - Senggir ( Hong - siang - yi - eulh ) in Xinjiang, possibly a victim of poison. A Stone Turtle at the site of the Mongol capital, Karakorum. Güyük 's widow Oghul Qaimish stepped forward to take control of the empire, but she lacked the skills of her mother - in - law Töregene, and her young sons Khoja and Naku and other princes challenged her authority. To decide on a new great khan, Batu called a kurultai on his own territory in 1250. As it was far from the Mongolian heartland, members of the Ögedeid and Chagataid families refused to attend. The kurultai offered the throne to Batu, but he rejected it, claiming he had no interest in the position. Batu instead nominated Möngke, a grandson of Genghis from his son Tolui 's lineage. Möngke was leading a Mongol army in Russia, the northern Caucasus and Hungary. The pro-Tolui faction supported Batu 's choice, and Möngke was elected ; though given the kurultai 's limited attendance and location, it was of questionable validity. Batu sent Möngke, under the protection of his brothers, Berke and Tukhtemur, and his son Sartaq to assemble a more formal kurultai at Kodoe Aral in the heartland. The supporters of Möngke repeatedly invited Oghul Qaimish and the other major Ögedeid and Chagataid princes to attend the kurultai, but they refused each time. The Ögedeid and Chagataid princes refused to accept a descendant of Genghis 's son Tolui as leader, demanding that only descendants of Genghis 's son Ögedei could be great khan. Rule of Möngke Khan ( 1251 -- 1259 ) When Möngke 's mother Sorghaghtani and their cousin Berke organized a second kurultai on 1 July 1251, the assembled throng proclaimed Möngke great khan of the Mongol Empire. This marked a major shift in the leadership of the empire, transferring power from the descendants of Genghis 's son Ögedei to the descendants of Genghis 's son Tolui. The decision was acknowledged by a few of the Ögedeid and Chagataid princes, such as Möngke 's cousin Kadan and the deposed khan Qara Hülëgü, but one of the other legitimate heirs, Ögedei 's grandson Shiremun, sought to topple Möngke. Shiremun moved with his own forces towards the emperor 's nomadic palace with a plan for an armed attack, but Möngke was alerted by his falconer of the plan. Möngke ordered an investigation of the plot, which led to a series of major trials all across the empire. Many members of the Mongol elite were found guilty and put to death, with estimates ranging from 77 -- 300, though princes of Genghis 's royal line were often exiled rather than executed. Möngke confiscated the estates of the Ögedeid and the Chagatai families and shared the western part of the empire with his ally Batu Khan. After the bloody purge, Möngke ordered a general amnesty for prisoners and captives, but thereafter the power of the great khan 's throne remained firmly with the descendants of Tolui. Administrative reforms Möngke was a serious man who followed the laws of his ancestors and avoided alcoholism. He was tolerant of outside religions and artistic styles, leading to the building of foreign merchants ' quarters, Buddhist monasteries, mosques, and Christian churches in the Mongol capital. As construction projects continued, Karakorum was adorned with Chinese, European, and Persian architecture. One famous example was a large silver tree with cleverly designed pipes that dispensed various drinks. The tree, topped by a triumphant angel, was crafted by Guillaume Boucher, a Parisian goldsmith. Hulagu, Genghis Khan 's grandson and founder of the Il - Khanate. From a medieval Persian manuscript. Although he had a strong Chinese contingent, Möngke relied heavily on Muslim and Mongol administrators and launched a series of economic reforms to make government expenses more predictable. His court limited government spending and prohibited nobles and troops from abusing civilians or issuing edicts without authorization. He commuted the contribution system to a fixed poll tax which was collected by imperial agents and forwarded to units in need. His court also tried to lighten the tax burden on commoners by reducing tax rates. He also centralized control of monetary affairs and reinforced the guards at the postal relays. Möngke ordered an empire - wide census in 1252 that took several years to complete and was not finished until Novgorod in the far northwest was counted in 1258. In another move to consolidate his power, Möngke assigned his brothers Hulagu and Kublai to rule Persia and Mongol - held China respecively. In the southern part of the empire he continued his predecessors ' struggle against the Song dynasty. In order to outflank the Song from three directions, Möngke dispatched Mongol armies under his brother Kublai to Yunnan, and under his uncle Iyeku to subdue Korea and pressure the Song from that direction as well. Kublai conquered the Dali Kingdom in 1253 after the Dali King Duan Xingzhi defected to the Mongols and helped them conquer the rest of Yunnan. Möngke 's general Qoridai stabilized his control over Tibet, inducing leading monasteries to submit to Mongol rule. Subutai 's son Uryankhadai reduced the neighboring peoples of Yunnan to submission and defeated the Trần dynasty in northern Vietnam in 1257, but they had to draw back in 1258. The Mongol Empire tried to invade Vietnam again in 1284 and 1287 but were defeated both times. New invasions of the Middle East and southern China Main article : Mongol invasions of the Levant See also : Mongol invasion of China and Siege of Baghdad ( 1258 ) Mongol invasion of Baghdad After stabilizing the empire 's finances, Möngke once again sought to expand its borders. At kurultais in Karakorum in 1253 and 1258 he approved new invasions of the Middle East and south China. Möngke put Hulagu in overall charge of military and civil affairs in Persia, and appointed Chagataids and Jochids to join Hulagu 's army. The Muslims from Qazvin denounced the menace of the Nizari Ismailis, a heretical sect of Shiites. The Mongol Naiman commander Kitbuqa began to assault several Ismaili fortresses in 1253, before Hulagu advanced in 1256. Ismaili Grand Master Rukn ud - Din surrendered in 1257 and was executed. All of the Ismaili strongholds in Persia were destroyed by Hulagu 's army in 1257, except for Girdukh which held out until 1271. Fall of Baghdad, 1258 The center of the Islamic Empire at the time was Baghdad, which had held power for 500 years but was suffering internal divisions. When its caliph al - Mustasim refused to submit to the Mongols, Baghdad was besieged and captured by the Mongols in 1258 and subjected to a merciless sack, an event considered as one of the most catastrophic events in the history of Islam, and sometimes compared to the rupture of the Kaaba. With the destruction of the Abbasid Caliphate, Hulagu had an open route to Syria and moved against the other Muslim powers in the region. His army advanced towards Ayyubid - ruled Syria, capturing small local states en route. The sultan Al - Nasir Yusuf of the Ayyubids refused to show himself before Hulagu ; however, he had accepted Mongol supremacy two decades earlier. When Hulagu headed further west, the Armenians from Cilicia, the Seljuks from Rum and the Christian realms of Antioch and Tripoli submitted to Mongol authority, joining the them in their assault against the Muslims. While some cities surrendered without resisting, others such as Mayafarriqin fought back ; their populations were massacred and the cities were sacked. Death of Möngke Khan ( 1259 ) The extent of the Mongol Empire after the death of Möngke Khan ( reigned 1251 -- 1259 ). Meanwhile, in the northwestern portion of the empire, Batu 's successor and younger brother Berke sent punitive expeditions to Ukraine, Belarus, Lithuania and Poland. Dissension began brewing between the northwestern and southwestern sections of the Mongol Empire as Batu suspected that Hulagu 's invasion of Western Asia would result in the elimination of Batu 's own dominance there. In the southern part of the empire, Möngke Khan himself led his army to complete the conquest of China. Military operations were generally successful, but prolonged, so the forces did not withdraw to the north as was customary when the weather turned hot. Disease ravaged the Mongol forces with bloody epidemics, and Möngke died there on 11 August 1259. This event began a new chapter in the history of the Mongols, as again a decision needed to be made on a new great khan. Mongol armies across the empire withdrew from their campaigns to convene a new kurultai. Disunity Dispute over succession The Mongols at war Möngke 's brother Hulagu broke off his successful military advance into Syria, withdrawing the bulk of his forces to Mughan and leaving only a small contingent under his general Kitbuqa. The opposing forces in the region, the Christian Crusaders and Muslim Mamluks, both recognizing that the Mongols were the greater threat, took advantage of the weakened state of the Mongol army and engaged in an unusual passive truce with each other. In 1260, the Mamluks advanced from Egypt, being allowed to camp and resupply near the Christian stronghold of Acre, and engaged Kitbuqa 's forces just north of Galilee at the Battle of Ain Jalut. The Mongols were defeated, and Kitbuqa executed. This pivotal battle marked the western limit for Mongol expansion in the Middle East, and the Mongols were never again able to make serious military advances farther than Syria. In a separate part of the empire, Kublai Khan, another brother of Hulagu and Möngke, heard of the great khan 's death at the Huai River in China. Rather than returning to the capital, he continued his advance into the Wuchang area of China, near the Yangtze River. Their younger brother Ariqboke took advantage of the absence of Hulagu and Kublai, and used his position at the capital to win the title of great khan for himself, with representatives of all the family branches proclaiming him as the leader at the kurultai in Karakorum. When Kublai learned of this, he summoned his own kurultai at Kaiping, and nearly all the senior princes and great noyans in North China and Manchuria supported his own candidacy over that of Ariqboke. Mongolian civil war See also : Toluid Civil War and Berke -- Hulagu war Kublai Khan, Genghis Khan 's grandson and founder of the Yuan dynasty Battles ensued between the armies of Kublai and those of his brother Ariqboke, which included forces still loyal to Möngke 's previous administration. Kublai 's army easily eliminated Ariqboke 's supporters and seized control of the civil administration in southern Mongolia. Further challenges took place from their cousins, the Chagataids. Kublai sent Abishka, a Chagataid prince loyal to him, to take charge of Chagatai 's realm. But Ariqboke captured and then executed Abishka, having his own man Alghu crowned there instead. Kublai 's new administration blockaded Ariqboke in Mongolia to cut off food supplies, causing a famine. Karakorum fell quickly to Kublai, but Ariqboke rallied and re-took the capital in 1261. In southwestern Ilkhanate, Hulagu was loyal to his brother Kublai, but clashes with their cousin Berke, the ruler of the Golden Horde, began in 1262. The suspicious deaths of Jochid princes in Hulagu 's service, unequal distribution of war booty, and Hulagu 's massacres of Muslims increased the anger of Berke, who considered supporting a rebellion of the Georgian Kingdom against Hulagu 's rule in 1259 -- 1260. Berke also forged an alliance with the Egyptian Mamluks against Hulagu and supported Kublai 's rival claimant, Ariqboke. Hulagu died on 8 February 1264. Berke sought to take advantage and invade Hulagu 's realm, but he died along the way, and a few months later Alghu Khan of the Chagatai Khanate died as well. Kublai named Hulagu 's son Abaqa as new Ilkhan, and nominated Batu 's grandson Möngke Temür to lead the Golden Horde. Abaqa sought foreign alliances, such as attempting to form a Franco - Mongol alliance against the Egyptian Mamluks. Ariqboqe surrendered to Kublai at Shangdu on 21 August 1264. Campaigns of Kublai Khan ( 1264 -- 1294 ) Main article : Kublai Khan 's Campaigns The samurai Suenaga facing Mongol 's bomb and Goryeo 's arrows. Mōko Shūrai Ekotoba ( 蒙古 襲来 絵詞 ), circa 1293. In the south, after the fall of Xiangyang in 1273, the Mongols sought the final conquest of the Song dynasty in South China. In 1271, Kublai renamed the new Mongol regime in China as the Yuan dynasty and sought to sinicize his image as Emperor of China to win the control of the Chinese people. Kublai moved his headquarters to Dadu, the genesis for what later became the modern city of Beijing. His establishment of a capital there was a controversial move to many Mongols who accused him of being too closely tied to Chinese culture. The Mongols were eventually successful in their campaigns against ( Song ) China, and the Chinese Song imperial family surrendered to the Yuan in 1276, making the Mongols the first non-Chinese people to conquer all of China. Kublai used his base to build a powerful empire, creating an academy, offices, trade ports and canals, and sponsoring arts and science. Mongol records list 20,166 public schools created during his reign. Mongol warrior on horseback, preparing a mounted archery shot. After achieving actual or nominal dominion over much of Eurasia and successfully conquering China, Kublai pursued further expansion. His invasions of Burma and Sakhalin were costly, and his attempted invasions of Annam and Champa ended in devastating defeat, but secured vassal statuses of those countries. The Mongol armies were repeatedly beaten in Annam and were crushed at the Battle of Bạch Đằng ( 1288 ). Nogai and Konchi, the khan of the White Horde, established friendly relations with the Yuan dynasty and the Ilkhanate. Political disagreement among contending branches of the family over the office of great khan continued, but the economic and commercial success of the Mongol Empire continued despite the squabbling. Disintegration into competing entities Main article : Division of the Mongol Empire The funeral of Chagatai Khan. Major changes occurred in the Mongol Empire in the late 1200s. Kublai Khan, after having conquered all of China and established the Yuan dynasty, died in 1294. He was succeeded by his grandson Temür Khan, who continued Kublai 's policies. At the same time the Toluid Civil War, along with the Berke -- Hulagu war and the subsequent Kaidu -- Kublai war, greatly weakened the authority of the great khan over the entirety of the Mongol Empire and the empire fractured into autonomous khanates, the Yuan dynasty and the three western khanates : the Golden Horde, the Chagatai Khanate and the Ilkhanate. Only the Ilkhanate remained loyal to the Yuan court but endured its own power struggle, in part because of a dispute with the growing Islamic factions within the southwestern part of the empire. After the death of Kaidu, the Chatagai ruler Duwa initiated a peace proposal and persuaded the Ögedeids to submit to Temür Khan. In 1304, all of the khanates approved a peace treaty and accepted Yuan emperor Temür 's supremacy. This established the nominal supremacy of the Yuan dynasty over the western khanates, which was to last for several decades. This supremacy was based on weaker foundations than that of the earlier Khagans and each of the four khanates continued to develop separately and function as independent states. Nearly a century of conquest and civil war was followed by relative stability, the Pax Mongolica, and international trade and cultural exchanges flourished between Asia and Europe. Communication between the Yuan dynasty in China and the Ilkhanate in Persia further encouraged trade and commerce between east and west. Patterns of Yuan royal textiles could be found on the opposite side of the empire adorning Armenian decorations ; trees and vegetables were transplanted across the empire ; and technological innovations spread from Mongol dominions towards the West. Pope John XXII was presented a memorandum from the eastern church describing the Pax Mongolica : ``... Khagan is one of the greatest monarchs and all lords of the state, e.g., the king of Almaligh ( Chagatai Khanate ), emperor Abu Said and Uzbek Khan, are his subjects, saluting his holiness to pay their respects. '' However, while the four khanates continued to interact with one another well into the 14th century, they did so as sovereign states and never again pooled their resources in a cooperative military endeavor. Development of the khanates A European depiction of the four khans, Temür ( Yuan ), Chapar ( House of Ögedei ), Toqta ( Golden Horde ), and Öljaitü ( Ilkhanate ), in the Fleur des histoires d'orient. In spite of his conflicts with Kaidu and Duwa, Yuan emperor Temür established a tributary relationship with the war - like Shan people after his series of military operations against Thailand from 1297 to 1303. This was to mark the end of the southern expansion of the Mongols. When Ghazan took the throne of the Ilkhanate in 1295, he formally accepted Islam as his own religion, marking a turning point in Mongol history after which Mongol Persia became more and more Islamic. Despite this, Ghazan continued to strengthen ties with Temür Khan and the Yuan dynasty in the east. It was politically useful to advertise the great khan 's authority in the Ilkhanate, because the Golden Horde in Russia had long made claims on nearby Georgia. Within four years, Ghazan began sending tribute to the Yuan court and appealing to other khans to accept Temür Khan as their overlord. He oversaw an extensive program of cultural and scientific interaction between the Ilkhanate and the Yuan dynasty in the following decades. Ghazan 's faith may have been Islamic, but he continued his ancestors ' war with the Egyptian Mamluks, and consulted with his old Mongolian advisers in his native tongue. He defeated the Mamluk army at the Battle of Wadi al - Khazandar in 1299, but he was only briefly able to occupy Syria, due to distracting raids from the Chagatai Khanate under its de facto ruler Kaidu, who was at war with both the Ilkhans and the Yuan dynasty. Struggling for influence within the Golden Horde, Kaidu sponsored his own candidate Kobeleg against Bayan ( r. 1299 -- 1304 ), the khan of the White Horde. Bayan, after receiving military support from the Mongols in Russia, requested assistance from both Temür Khan and the Ilkhanate to organize a unified attack against Kaidu 's forces. Temür was amenable and attacked Kaidu a year later. After a bloody battle with Temür 's armies near the Zawkhan River in 1301, Kaidu died and was succeeded by Duwa. Hungarian King Béla IV in flight from the Mongols under general Kadan of the Golden Horde. Duwa was challenged by Kaidu 's son Chapar, but with the assistance of Temür, Duwa defeated the Ögedeids. Tokhta of the Golden Horde, also seeking a general peace, sent 20,000 men to buttress the Yuan frontier. Tokhta died in 1312, though, and was succeeded by Ozbeg ( r. 1313 -- 41 ), who seized the throne of the Golden Horde and persecuted non-Muslim Mongols. The Yuan 's influence on the Horde was largely reversed and border clashes between Mongol states resumed. Ayurbarwada Buyantu Khan 's envoys backed Tokhta 's son against Ozbeg. In the Chagatai Khanate, Esen Buqa I ( r. 1309 -- 1318 ) was enthroned as khan after suppressing a sudden rebellion by Ögedei 's descendants and driving Chapar into exile. The Yuan and Ilkhanid armies eventually attacked the Chagatai Khanate. Recognising the potential economic benefits and the Genghisid legacy, Ozbeg reopened friendly relations with the Yuan in 1326. He strengthened ties with the Muslim world as well, building mosques and other elaborate structures such as baths. By the second decade of the 14th century, Mongol invasions had further decreased. In 1323, Abu Said Khan ( r. 1316 -- 35 ) of the Ilkhanate signed a peace treaty with Egypt. At his request, the Yuan court awarded his custodian Chupan the title of commander - in - chief of all Mongol khanates, but Chupan died in late 1327. Civil war erupted in the Yuan dynasty in 1328 -- 29. After the death of Yesün Temür in 1328, Tugh Temür became the new leader in Dadu, while Yesün Temür 's son Ragibagh succeeded to the throne in Shangdu, leading to the civil war known as the War of the Two Capitals. Tugh Temür defeated Ragibagh, but the Chagatai khan Eljigidey ( r. 1326 -- 29 ) supported Kusala, elder brother of Tugh Temür, as great khan. He invaded with a commanding force, and Tugh Temür abdicated. Kusala was elected khan on 30 August 1329. Kusala was then poisoned by a Kypchak commander under Tugh Temür, who returned to power. Tugh Temür ( 1304 -- 32 ) was knowledgeable about Chinese language and history and was also a creditable poet, calligrapher, and painter. In order to be accepted by other khanates as the sovereign of the Mongol world, he sent Genghisid princes and descendants notable Mongol generals to the Chagatai Khanate, Ilkhan Abu Said, and Ozbeg. In response to the emissaries, they all agreed to send tribute each year. Furthermore, Tugh Temür gave lavish presents and an imperial seal to Eljigidey to mollify his anger. Relict states of the Mongol Empire With the death of Ilkhan Abu Said Bahatur in 1335, Mongol rule faltered and Persia fell into political anarchy. A year later his successor was killed by an Oirat governor, and the Ilkhanate was divided between the Suldus, the Jalayir, Qasarid Togha Temür ( d. 1353 ), and Persian warlords. Taking advantage of the chaos, the Georgians pushed the Mongols out of their territory, and the Uyghur commander Eretna established an independent state ( Ertenids ) in Anatolia in 1336. Following the downfall of their Mongol masters, the loyal vassal, the Armenian Kingdom of Cilicia, received escalating threats from the Mamluks and were eventually overrun. Along with the dissolution of the Ilkhanate in Persia, Mongol rulers in China and the Chagatai Khanate were also in turmoil. The plague known as the Black Death, which started in the Mongol dominions and spread to Europe, added to the confusion. Disease devastated all the khanates, cutting off commercial ties and killing millions. Plague may have taken 50 million lives in Europe alone in the 14th century. As the power of the Mongols declined, chaos erupted throughout the empire as non-Mongol leaders expanded their own influence. The Golden Horde lost all of its western dominions ( including modern Belarus and Ukraine ) to Poland and Lithuania between 1342 and 1369. Muslim and non-Muslim princes in the Chagatai Khanate warred with each other from 1331 -- 43, and the Chagatai Khanate disintegrated when non-Genghisid warlords set up their own puppet khans in Transoxiana and Moghulistan. Janibeg Khan ( r. 1342 -- 1357 ) briefly reasserted Jochid dominance over the Chaghataids. Demanding submission from an offshoot of the Ilkhanate in Azerbaijan, he boasted that `` today three uluses are under my control ''. Crimean Tatar khan, Mengli Giray. However, rival families of the Jochids began fighting for the throne of the Golden Horde after the assassination of his successor Berdibek Khan in 1359. The last Yuan ruler Toghan Temür ( r. 1333 -- 70 ) was powerless to regulate those troubles, a sign that the empire had nearly reached its end. His court 's unbacked currency had entered a hyperinflationary spiral and the Han - Chinese people revolted due to the Yuan 's harsh impositions. In the 1350s, Gongmin of Goryeo successfully pushed Mongolian garrisons back and exterminated the family of Toghan Temür Khan 's empress while Tai Situ Changchub Gyaltsen managed to eliminate the Mongol influence in Tibet. Increasingly isolated from their subjects, the Mongols quickly lost most of China to the rebellious Ming forces and in 1368 fled to their heartland in Mongolia. After the overthrow of the Yuan dynasty the Golden Horde lost touch with Mongolia and China, while the two main parts of the Chagatai Khanate were defeated by Timur ( Tamerlane ) ( 1336 -- 1405 ), who founded the Timurid Empire. However, remnants of the Chagatai Khanate survived ; the last Chagataid state to survive was the Yarkent Khanate, until its defeat by the Oirat Dzungar Khanate in the Dzungar conquest of Altishahr in 1680. The Golden Horde broke into smaller Turkic - hordes that declined steadily in power over four centuries. Among them, the khanate 's shadow, the Great Horde, survived until 1502, when one of its successors, the Crimean Khanate, sacked Sarai. The Crimean Khanate lasted until 1783, whereas khanates such as the Khanate of Bukhara and the Kazakh Khanate lasted even longer. Military organization Main article : Mongol military tactics and organization Reconstruction of a Mongol warrior The number of troops mustered by the Mongols is the subject of some scholarly debate, but was at least 105,000 in 1206. The Mongol military organization was simple but effective, based on the decimal system. The army was built up from squads of ten men each, arbans ( 10 people ), zuuns ( 100 ), Mingghans ( 1000 ), and tumens ( 10,000 ). The Mongols were most famous for their horse archers, but troops armed with lances were equally skilled, and the Mongols recruited other military talents from the lands they conquered. With experienced Chinese engineers and a bombardier corps which was expert at building trebuchets, catapults and other machines, the Mongols could lay siege to fortified positions, sometimes building machinery on the spot using available local resources. Mongol general Subutai of the Golden Horde Forces under the command of the Mongol Empire were trained, organized, and equipped for mobility and speed. Mongol soldiers were more lightly armored than many of the armies they faced but were able to make up for it with maneuverability. Each Mongol warrior would usually travel with multiple horses, allowing him to quickly switch to a fresh mount as needed. In addition, soldiers of the Mongol army functioned independently of supply lines, considerably speeding up army movement. Skillful use of couriers enabled the leaders of these armies to maintain contact with each other. Discipline was inculcated during a nerge ( traditional hunt ), as reported by Juvayni. These hunts were distinctive from hunts in other cultures, being the equivalent to small unit actions. Mongol forces would spread out in a line, surround an entire region, and then drive all of the game within that area together. The goal was to let none of the animals escape and to slaughter them all. Another advantage of the Mongols was their ability to traverse large distances, even in unusually cold winters ; for instance, frozen rivers led them like highways to large urban centers on their banks. The Mongols were adept at river - work, crossing the river Sajó in spring flood conditions with thirty thousand cavalry soldiers in a single night during the Battle of Mohi ( April 1241 ) to defeat the Hungarian king Béla IV. Similarly, in the attack against the Muslim Khwarezmshah a flotilla of barges was used to prevent escape on the river. Traditionally known for their prowess with ground forces, the Mongols rarely used naval power. In the 1260s and 1270s they used seapower while conquering the Song dynasty of China, though their attempts to mount seaborne campaigns against Japan were unsuccessful. Around the Eastern Mediterranean, their campaigns were almost exclusively land - based, with the seas controlled by the Crusader and Mamluk forces. All military campaigns were preceded by careful planning, reconnaissance, and the gathering of sensitive information relating to enemy territories and forces. The success, organization, and mobility of the Mongol armies permitted them to fight on several fronts at once. All adult males up to the age of 60 were eligible for conscription into the army, a source of honor in their tribal warrior tradition. Society Main article : Society of the Mongol Empire Law and governance See also : Organization of the Mongol Empire under Genghis Khan The executed -- the long and full beard probably means he is not a Mongol -- has been thrown off a cliff. The Mongol Empire was governed by a code of law devised by Genghis, called Yassa, meaning `` order '' or `` decree ''. A particular canon of this code was that those of rank shared much the same hardship as the common man. It also imposed severe penalties -- e.g., the death penalty if one mounted soldier following another did not pick up something dropped from the mount in front. Penalties were also decreed for rape and to some extent for murder. Any resistance to Mongol rule was met with massive collective punishment. Cities were destroyed and their inhabitants slaughtered if they defied Mongol orders. Under Yassa, chiefs and generals were selected based on merit. The empire was governed by a non-democratic, parliamentary - style central assembly, called kurultai, in which the Mongol chiefs met with the great khan to discuss domestic and foreign policies. Kurultais were also convened for the selection of each new great khan. Genghis Khan also created a national seal, encouraged the use of a written alphabet in Mongolia, and exempted teachers, lawyers, and artists from taxes. The Mongols imported Central Asian Muslims to serve as administrators in China and sent Han Chinese and Khitans from China to serve as administrators over the Muslim population in Bukhara in Central Asia, thus using foreigners to curtail the power of the local peoples of both lands. The Mongols were tolerant of other religions, and rarely persecuted people on religious grounds. This was associated with their culture and progressive thought. Some historians of the 20th century thought this was a good military strategy : when Genghis was at war with Sultan Muhammad of Khwarezm, other Islamic leaders did not join the fight, as it was seen as a non-holy war between two individuals. Religions Main article : Religion in the Mongol Empire Persian miniature depicting Ghazan 's conversion from Buddhism to Islam. At the time of Genghis Khan, virtually every religion had found Mongol converts, from Buddhism to Christianity, from Manichaeism to Islam. To avoid strife, Genghis Khan set up an institution that ensured complete religious freedom, though he himself was a shamanist. Under his administration, all religious leaders were exempt from taxation and from public service. Initially there were few formal places of worship because of the nomadic lifestyle. However, under Ögedei ( 1186 -- 1241 ), several building projects were undertaken in the Mongol capital. Along with palaces, Ögedei built houses of worship for the Buddhist, Muslim, Christian, and Taoist followers. The dominant religions at that time were Shamanism, Tengrism, and Buddhism, although Ögedei 's wife was a Nestorian Christian. Eventually, each of the successor states adopted the dominant religion of the local populations : the Chinese - Mongolian Yuan dynasty in the East ( originally the great khan 's domain ) embraced Buddhism and Shamanism, while the three Western khanates adopted Islam. Arts and literature See also : List of historical cities and towns of Mongolia The oldest surviving literary work in the Mongolian language is The Secret History of the Mongols, which was written for the royal family some time after Genghis Khan 's death in 1227. It is the most significant native account of Genghis 's life and genealogy, covering his origins and childhood through to the establishment of the Mongol Empire and the reign of his son, Ögedei. Another classic from the empire is the Jami ' al - tawarikh, or `` Universal History ''. It was commissioned in the early 14th century by the Ilkhan Abaqa Khan as a way of documenting the entire world 's history, to help establish the Mongols ' own cultural legacy. Mongol scribes in the 14th century used a mixture of resin and vegetable pigments as a primitive form of correction fluid ; this is arguably its first known usage. The Mongols also appreciated the visual arts, though their taste in portraiture was strictly focused on portraits of their horses, rather than of people. Mail system Main article : Yam ( route ) A 1305 letter ( on a scroll measuring 302 by 50 centimetres ( 9.91 by 1.64 ft ) ) from the Ilkhan Mongol Öljaitü to King Philip IV of France. The Mongol Empire had an ingenious and efficient mail system for the time, often referred to by scholars as the Yam. It had lavishly furnished and well - guarded relay posts known as örtöö set up throughout the Empire. A messenger would typically travel 25 miles ( 40 km ) from one station to the next, either receiving a fresh, rested horse, or relaying the mail to the next rider to ensure the speediest possible delivery. The Mongol riders regularly covered 125 miles ( 200 km ) per day, better than the fastest record set by the Pony Express some 600 years later. The relay stations had attached households to service them. Anyone with a paiza was allowed to stop there for re-mounts and specified rations, while those carrying military identities used the Yam even without a paiza. Many merchants, messengers, and travelers from China, the Middle East, and Europe used the system. When the great khan died in Karakorum, news reached the Mongol forces under Batu Khan in Central Europe within 4 -- 6 weeks thanks to the Yam. Genghis and his successor Ögedei built a wide system of roads, one of which carved through the Altai mountains. After his enthronement, Ögedei further expanded the road system, ordering the Chagatai Khanate and Golden Horde to link up roads in western parts of the Mongol Empire. Kublai Khan, founder of the Yuan dynasty, built special relays for high officials, as well as ordinary relays, that had hostels. During Kublai 's reign, the Yuan communication system consisted of some 1,400 postal stations, which used 50,000 horses, 8,400 oxen, 6,700 mules, 4,000 carts, and 6,000 boats. In Manchuria and southern Siberia, the Mongols still used dogsled relays for the yam. In the Ilkhanate, Ghazan restored the declining relay system in the Middle East on a restricted scale. He constructed some hostels and decreed that only imperial envoys could receive a stipend. The Jochids of the Golden Horde financed their relay system by a special yam tax. Silk Road Main article : Silk Road See also : Pax Mongolica and Black Death Tuda Mengu of the Golden Horde. The Mongols had a history of supporting merchants and trade. Genghis Khan had encouraged foreign merchants early in his career, even before uniting the Mongols. Merchants provided information about neighboring cultures, served as diplomats and official traders for the Mongols, and were essential for many goods, since the Mongols produced little of their own. Mongols sometimes provided capital for merchants and sent them far afield, in an ortoq ( merchant partner ) arrangement. As the empire grew, any merchants or ambassadors with proper documentation and authorization received protection and sanctuary as they traveled through Mongol realms. Well - traveled and relatively well - maintained roads linked lands from the Mediterranean basin to China, greatly increasing overland trade and resulting in some dramatic stories of those who travelled through what would become known as the Silk Road. Western explorer Marco Polo traveled east along the Silk Road, and the Chinese Mongol monk Rabban Bar Sauma made a comparably epic journey along the route, venturing from his home of Khanbaliq ( Beijing ) as far as Europe. European missionaries, such as William of Rubruck, also traveled to the Mongol court to convert believers to their cause, or went as papal envoys to correspond with Mongol rulers in an attempt to secure a Franco - Mongol alliance. It was rare, however, for anyone to journey the full length of Silk Road. Instead, merchants moved products like a bucket brigade, goods being traded from one middleman to another, moving from China all the way to the West ; the goods moved over such long distances fetched extravagant prices. An Islamic gold coin inscribed in the name of Genghis Khan After Genghis, the merchant partner business continued to flourish under his successors Ögedei and Güyük. Merchants brought clothing, food, information, and other provisions to the imperial palaces, and in return the great khans gave the merchants tax exemptions and allowed them to use the official relay stations of the Mongol Empire. Merchants also served as tax farmers in China, Russia and Iran. If the merchants were attacked by bandits, losses were made up from the imperial treasury. Policies changed under the Great Khan Möngke. Because of money laundering and overtaxing, he attempted to limit abuses and sent imperial investigators to supervise the ortoq businesses. He decreed that all merchants must pay commercial and property taxes, and he paid off all drafts drawn by high - ranking Mongol elites from the merchants. This policy continued under the Yuan dynasty. The fall of the Mongol Empire in the 14th century led to the collapse of the political, cultural, and economic unity along the Silk Road. Turkic tribes seized the western end of the route from the Byzantine Empire, sowing the seeds of a Turkic culture that would later crystallize into the Ottoman Empire under the Sunni faith. In the East, the native Chinese overthrew the Yuan dynasty in 1368, launching their own Ming dynasty and pursuing a policy of economic isolationism. Legacy See also : History of Mongolia Map showing the boundary of 13th century Mongol Empire compared to today 's Mongols in Mongolia, Russia, the Central Asian States, and China The Mongol Empire -- at its height the largest contiguous empire in history -- had a lasting impact, unifying large regions. Some of these ( such as eastern and western Russia and the western parts of China ) remain unified today. Mongols might have been assimilated into local populations after the fall of the empire, and some of these descendants adopted local religions -- for example, the eastern khanate largely adopted Buddhism, and the three western khanates adopted Islam, largely under Sufi influence. According to some interpretations, Genghis Khan 's conquests caused wholesale destruction on an unprecedented scale in certain geographical regions, leading to changes in the demographics of Asia. Non-military achievements of the Mongol Empire included the introduction of a writing system, a Mongol alphabet based on the characters of the Uyghur language, that is still used today in Mongolia. Tokhtamysh and the armies of the Golden Horde initiate the Siege of Moscow ( 1382 ). Some of the other long - term consequences of the Mongol Empire include : Moscow rose to prominence whilst under the Mongol - Tatar yoke, some time after Russian rulers were accorded the status of tax collectors for the Mongols. The fact that the Russians collected tribute and taxes for the Mongols meant that the Mongols themselves would rarely visit the lands that they owned. The Russians eventually gained military power, and their ruler Ivan III overthrew the Mongols completely to form the Russian Tsardom. After the Great stand on the Ugra river proved the Mongols vulnerable, the Grand Duchy of Moscow gained independence. Europe 's knowledge of the known world was immensely expanded by the information brought back by ambassadors and merchants. When Columbus sailed in 1492, his mission was to reach Cathay, the land of the Grand Khan in China, and give him a letter from the monarchs Ferdinand II of Aragon and Isabella I of Castile. Some studies indicate that the Black Death that devastated Europe in the late 1340s may have traveled from China to Europe along the trade routes of the Mongol Empire. In 1347, the Genoese possessor of Caffa, a great trade emporium on the Crimean Peninsula, came under siege by an army of Mongol warriors under the command of Janibeg. After a protracted siege during which the Mongol army was reportedly withering from disease, they decided to use the infected corpses as a biological weapon. The corpses were catapulted over the city walls, infecting the inhabitants. The Genoese traders fled, transferring the plague via their ships into the south of Europe, from where it rapidly spread. The total number of deaths worldwide from the pandemic is estimated at 75 -- 200 million with up to 50 million deaths in Europe alone. Dominican martyrs killed by Mongols during the Mongol invasion of Poland in 1260. Western researcher R.J. Rummel estimated that 30 million people were killed under the rule of the Mongol Empire. Some estimates go as high as 80 million killed, with 50 million deaths being the middle ground. The population of China fell by half in fifty years of Mongol rule. Before the Mongol invasion, the territories of the Chinese dynasties reportedly had approximately 120 million inhabitants ; after the conquest was completed in 1279, the 1300 census reported roughly 60 million people. While it is tempting to attribute this major decline solely to Mongol ferocity, scholars today have mixed opinions regarding this subject. Scholars such as Frederick W. Mote argue that the wide drop in numbers reflects an administrative failure to record rather than a de facto decrease, whilst others such as Timothy Brook argue that the Mongols reduced much of the south Chinese population, and very debatably the Han Chinese population, to an invisible status through cancellation of the right to passports and denial of the right to direct land ownership. This meant that the Chinese had to depend on and be cared for chiefly by Mongols and Tartars, which also involved recruitment into the Mongol army. Other historians such as William McNeill and David Morgan argue that the bubonic plague was the main factor behind the demographic decline during this period. The Islamic world was subject to massive changes as a result of Mongol invasions. The population of the Iranian plateau suffered from widespread disease and famine, resulting in the deaths of up to three - quarters of its population, possibly 10 to 15 million people. Historian Steven Ward estimates that Iran 's population did not reach its pre-Mongol levels again until the mid-20th century. David Nicole states in The Mongol Warlords, `` terror and mass extermination of anyone opposing them was a well tested Mongol tactic. '' About half of the Russian population may have died during the invasion. However, Colin McEvedy in Atlas of World Population History, 1978 estimates the population of Russia - in - Europe dropped from 7.5 million prior to the invasion to 7 million afterwards. Historians estimate that up to half of Hungary 's two million population were victims of the Mongol invasion. Historian Andrea Peto says that Rogerius, an eyewitness, said `` the Mongols killed everybody regardless of gender or age '' and that `` the Mongols especially ' found pleasure ' in humiliating women. '' The first Mughal Emperor Babur and his heir Humayun One of the more successful tactics employed by the Mongols was to wipe out urban populations that refused to surrender. During the Mongol invasion of Rus ', almost all major cities were destroyed. If they chose to submit, the people were generally spared, though this was not guaranteed. For example, the city of Hamadan in modern - day Iran was destroyed and every man, woman, and child executed by Mongol general Subadai, after surrendering to him but failing to have enough provisions for his Mongol scouting force. Several days after the initial razing of the city, Subadai sent a force back to the burning ruins and the site of the massacre to kill any inhabitants of the city who had been away at the time of the initial slaughter and had returned in the meantime. Mongolian armies made use of local peoples and their soldiers, often incorporating them into their armies. Prisoners of war sometimes were given the choice between death and becoming part of the Mongol army to aid in future conquests. In addition to intimidation tactics, the rapid expansion of the empire was facilitated by military hardiness ( especially during bitterly cold winters ), military skill, meritocracy, and discipline. Kalmyk migration from Russia to China in 1770 -- 1771 The Crimean Khanate and other descendants, such as the Mughal royal family of South Asia, are descended from Genghis Khan : Babur 's mother was a descendant, whereas his father was directly descended from Timur ( Tamerlane ). The word `` Mughol '' is a Persian word for Mongol. The Kalmyks were the last Mongol nomads to penetrate European territory, having migrated to Europe from Central Asia at the turn of the 17th century. In the winter of 1770 -- 1771, approximately 200,000 Kalmyks began the journey from their pastures on the left bank of the Volga River to Dzungaria, through the territories of their Kazakh and Kyrgyz enemies. After several months of travel, only one - third of the original group reached Dzungaria in northwest China. Some Turko - Mongol Khanates lasted into recent centuries : The Crimean Khanate lasted until 1783 ; the Khanate of Bukhara until 1920 ; the Kazakh Khanate until 1847 ; the Khanate of Kokand until 1876 ; and the Khanate of Khiva survived as a Russian protectorate until 1917. 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Twitchett, Denis ; Fairbank, John King, eds. Alien Regimes and Border States, 907 -- 1368. The Cambridge History of China. 6. Cambridge, UK ; New York : Cambridge University Press. ISBN 978 - 0 - 521 - 24331 - 5. CS1 maint : Uses editors parameter ( link ) Grousset, Rene ( 1970 ). The Empire of the Steppes : A History of Central Asia ( translated from French by Naomi Walford ). New Brunswick, New Jersey : Rutgers University Press. Halperin, Charles J. ( 1985 ). Russia and the Golden Horde : The Mongol Impact on Medieval Russian History. Bloomington, Indiana : Indiana University Press. ISBN 0 - 253 - 20445 - 3. Howorth, Henry H. ( 1965 ) ( London edition, 1876 ). History of the Mongols from the 9th to the 19th Century : Part I : The Mongols Proper and the Kalmuks. New York : Burt Frankin. Hull, Mary. ( 1997 ). The Mongol Empire ( World History Series ). Greenhaven Press. ISBN 978 - 1560063124. Jackson, Peter ( 1978 ). `` The dissolution of the Mongol Empire ''. Central Asiatic Journal. XXXII : 208 -- 351. Jackson, Peter ( 2003 ). The Delhi Sultanate : A Political and Military History. Cambridge, UK ; New York : Cambridge University Press. ISBN 0 - 521 - 54329 - 0. Jackson, Peter ( 2005 ). The Mongols and the West : 1221 -- 1410. Harlow, UK ; New York : Longman. ISBN 978 - 0 - 582 - 36896 - 5. Lane, George ( 2006 ). Daily life in the Mongol empire. Westport, Connecticut : Greenwood Press. ISBN 978 - 0 - 313 - 33226 - 5. Man, John ( 2004 ). Genghis Khan : Life, death and resurrection. New York : Thomas Dunne Books. ISBN 978 - 0 - 312 - 36624 - 7. Man, John ( 2007 ). Kublai Khan : from Xanadu to superpower. Bantam Books. ISBN 978 - 0 - 553 - 81718 - 8. Morgan, David ( June 1989 ). Arbel, B. ; et al., eds. `` The Mongols and the Eastern Mediterranean : Latins and Greeks in the Eastern Mediterranean after 1204 ''. Mediterranean Historical Review. Tel Aviv, Illinois : Routledge. 4 ( 1 ) : 204. doi : 10.1080 / 09518968908569567. ISSN 0951 - 8967. CS1 maint : Uses editors parameter ( link ) Morgan, David ( 2007 ). The Mongols ( 2nd ed. ). Malden, Massachusetts ; Oxford, UK ; Carlton, Victoria, Australia : Blackwell Publishing. ISBN 978 - 1 - 4051 - 3539 - 9. Prawdin, Michael ( pseudonym for Charol, Michael ) ( 1961 ) ( 1940 ). Mongol Empire. New Brunswick, New Jersey : Collier - Macmillan Canada. ISBN 1 - 4128 - 0519 - 8. CS1 maint : Multiple names : authors list ( link ) Ratchnevsky, Paul ( 1993 ). Haining, Thomas Nivison ( translator ), ed. Genghis Khan : His Life and Legacy. Wiley - Blackwell. ISBN 978 - 0631189497. Rossabi, Morris ( 1983 ). China Among Equals : The Middle Kingdom and Its Neighbors, 10th -- 14th Centuries. Berkeley, California : University of California Press. ISBN 0 - 520 - 04383 - 9. Sanders, Alan J.K. ( 2010 ). Historical Dictionary of Mongolia. Lanham, Maryland : Scarecrow Press. ISBN 978 - 0 - 8108 - 6191 - 6. Saunders, John Joseph ( 2001 ). The history of the Mongol conquests. Philadelphia, Pennsylvania : University of Pennsylvania Press. ISBN 978 - 0 - 8122 - 1766 - 7. Rybatzki, Volker ( 2009 ). The Early Mongols : Language, Culture and History. Indiana University. ISBN 978 - 0933070578. Sverdrup, Carl ( November 2010 ). `` Numbers in Mongol Warfare ''. In Rogers, Clifford J. ; DeVries, Kelly ; France, John. Journal of Medieval Military History. 8. Woodbridge, Suffolk, UK : Boydell & Brewer. ISBN 978 - 1 - 84383 - 596 - 7. CS1 maint : Uses editors parameter ( link ) Vladimortsov, Boris ( 1969 ). The Life of Chingis Khan. B. Blom. Weatherford, Jack ( 2004 ). Genghis Khan and the Making of the Modern World. New York : Three Rivers Press. ISBN 0 - 609 - 80964 - 4. Further reading Brent, Peter. The Mongol Empire : Genghis Khan : His Triumph and his Legacy. Book Club Associates, London. 1976. Buell, Paul D. ( 2003 ). Historical Dictionary of the Mongol World Empire. The Scarecrow Press, Inc. ISBN 0 - 8108 - 4571 - 7. Cleaves, Francis Woodman. 1954. `` A Medical Practice of the Mongols in the Thirteenth Century ''. Harvard Journal of Asiatic Studies 17 ( 3 / 4 ). Harvard - Yenching Institute : 428 -- 44. doi : 10.2307 / 2718323. https://www.jstor.org/stable/2718323 Halperin, Charles J... 1983. `` Russia in the Mongol Empire in Comparative Perspective ''. Harvard Journal of Asiatic Studies 43 ( 1 ). Harvard - Yenching Institute : 239 -- 61. doi : 10.2307 / 2719023. Findlay, Ronald, and Mats Lundahl. 2016. `` The First Globalization Episode : The Creation of the Mongol Empire, or the Economics of Chinggis Khan. '' in The Economics of the Frontier, pp 173 -- 221 May, Timothy. `` The Mongol Art of War. '' Westholme Publishing, Yardley. 2007. ISBN 978 - 1 - 59416 - 046 - 2 / ISBN 1 - 59416 - 046 - 5 May, Timothy. The Mongol Conquests in World History ( Reaktion Books, distributed by University of Chicago Press ; 2012 ) 319 pages Ostrowski, Donald. 1998. `` The `` tamma '' and the Dual - administrative Structure of the Mongol Empire ''. Bulletin of the School of Oriental and African Studies, University of London 61 ( 2 ). Cambridge University Press : 262 -- 77. https://www.jstor.org/stable/3107652. Rossabi, Morris. The Mongols : A Very Short Introduction. Oxford University Press, 2012. ISBN 978 - 0199840892 External links Wikimedia Commons has media related to Mongol Empire. Wikivoyage has a travel guide for Mongol Empire. 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Pratihara Pala Eastern Ganga dynasty Delhi Vijayanagara Iranian Samanid Kanem Khmer Latin Majapahit Malaccan Mali Mongol Yuan Golden Horde Chagatai Khanate Ilkhanate Moroccan Idrisid Almoravid Almohad Marinid North Sea Oyo Holy - Roman Carolingian Serbian Somali Ajuran Ifatite Adalite Mogadishan Warsangali Songhai Srivijaya Tibetan Turko - Persian Ghaznavid Great Seljuk Khwarezmian Timurid Vietnamese Ly Tran Le Wagadou Modern Ashanti Austrian Austro - Hungarian Brazilian Central African Chinese Ming Qing China Manchukuo Ethiopian Haitian French First Second German First / Old Reich Second Reich Third Reich Indian Maratha Sikh Mughal British Raj Iranian Safavid Afsharid Japanese Johor Korean Mexican First Second Moroccan Saadi Alaouite Russian Somali Gobroon Majeerteen Hobyo Dervish Soviet Swedish Tongan Turkish Ottoman Karaman Ramazan Vietnamese Tay Son Nguyen Vietnam Colonial American Belgian British English Danish Dutch French German Italian Japanese Omani Polish -- Lithuanian Couronian Portuguese Sovereign Military Order of Malta Spanish Swedish Lists Empires largest ancient great powers medieval great powers modern great powers Inner Asia history series Nomadic empire Xiongnu Xianbei state Rouran Khaganate Turkic Khaganate East West Uyghur Khaganate Qara Khitai Mongol Empire Chagatai Khanate Timurid Empire Northern Yuan dynasty Dzungar Khanate Chinese empire Han dynasty in the Western Regions Tang dynasty in Inner Asia Mongolian Plateau Tarim Basin Liao dynasty Zubu Yuan dynasty in Inner Asia Manchuria Mongolia Tibet Qing dynasty in Inner Asia Manchuria Mongolia Tibet Xinjiang Related topics The Cambridge History of Inner Asia Central Asia East Tartary Western Regions China proper Sinosphere Greater China NDL : 00979792 VIAF : 256308779 Retrieved from `` https://en.wikipedia.org/w/index.php?title=Mongol_Empire&oldid=856304462 '' Categories : Mongol Empire Former countries in Central Asia Former monarchies of Central Asia History of Central Asia History of Mongolia Khaganates Mongols Mongol states Nomadic groups in Eurasia Medieval Asia States and territories established in 1206 1368 disestablishments in the Mongol Empire 1206 establishments in the Mongol Empire Hidden categories : All articles lacking reliable references Articles lacking reliable references from February 2012 Articles needing more detailed references Wikipedia articles needing page number citations from February 2012 Use dmy dates from September 2016 Pages using infobox country with unknown parameters Articles with hAudio microformats Articles containing Russian - 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Question: how large was the mongol empire at the height of its power
Answer: 24,000,000 km2 (9,300,000 sq mi)