Key Facts
- Duration
- 1206–1368
- Peak area
- ~24 million km² (mid-13th century)
- Peak population
- ~160 million
- Geographic extent
- Sea of Japan to Eastern Europe
- Successor khanates
- 4 (Golden Horde, Chagatai, Ilkhanate, Yuan)
Imperial Zenith Metrics
Territorial Scale Comparison
Peak area vs modern sovereign states
Historical Trajectory
Phase I: Rise
Temüjin unified the fragmented nomadic tribes of the Mongolian steppe, and in 1206 a council of Mongol leaders proclaimed him Genghis Khan, ruler of all Mongols. He then launched a series of devastating military campaigns in every direction, conquering northern China, Central Asia, and the Iranian Plateau. His successors continued this expansion, extending Mongol dominion from Korea and southern China to Poland and the Levant within a few decades.
Phase II: Zenith
At its height in the mid-13th century, the empire stretched from the Pacific coast to Eastern Europe, encompassing more territory than any other contiguous empire. The enforced Pax Mongolica facilitated unprecedented Eurasian trade along the Silk Road, enabling the exchange of goods, technologies, and ideas between China, the Islamic world, and Latin Europe. Administrative systems drew on conquered civilizations, and religious tolerance was largely practiced across the vast domain.
Phase III: Decline
Succession disputes among Genghis Khan's grandsons fractured the empire. After Möngke Khan's death in 1259, rival claimants fought the Toluid Civil War, and by Kublai Khan's death in 1294 the empire had split into four independent khanates. The Ilkhanate collapsed by 1353, and the Yuan dynasty fell to Ming forces in 1368. The Golden Horde fragmented by the late 15th century, while the Chagatai Khanate persisted until 1687.
Notable Imperial Reigns
Selected rulers mapping the empire’s trajectory