Mongol Empire
A steppe confederation forged by Genghis Khan that conquered the largest contiguous empire in history and reknit Eurasia together.
1206–1368
The largest contiguous land empire in history, from the Pacific coast of China across the steppe to Persia and Eastern Europe
Economy
The Mongol economy began in the pastoral nomadism of the steppe—herds of horses, sheep, and cattle—but conquest turned it into a vast machine for extracting tribute, taxes, and skilled labour from settled civilisations. The khans taxed trade lightly and protected merchants, and in China the Yuan dynasty under Kublai Khan issued paper money (chao) backed by the state on an unprecedented scale. Craftsmen, administrators, and scholars were spared massacre and deported to serve the empire, redistributing skills across Eurasia even as campaigns devastated conquered regions.
Law
Genghis Khan promulgated the Yassa, a body of decrees and customary law that regulated the army, hunting, discipline, and social conduct, though its full text does not survive. The law demanded absolute loyalty and collective responsibility, imposed severe penalties for theft and betrayal, and notably exempted religious clergy of all faiths from taxation. Administration of conquered lands often retained local legal traditions under Mongol overlordship, producing a layered system in which the khan's decree stood above but did not erase the codes of Chinese, Persian, and other subject peoples.
Education
The Mongols themselves had no literary tradition at the outset, but Genghis Khan ordered the Uyghur script adapted to write the Mongolian language, and the Secret History of the Mongols became the earliest Mongolian literary text. The khans were pragmatic patrons of learning who gathered astronomers, physicians, and administrators from across their domains—Persian scholars served in China and Chinese engineers in Persia. Under the Ilkhanate the polymath Rashid al-Din compiled the Jami al-tawarikh, a pioneering universal history, exemplifying how Mongol patronage fostered an extraordinary exchange of knowledge across Eurasia.
Army
The Mongol army was a superbly disciplined force of mounted archers organised on the decimal system into units of ten, hundred, thousand, and ten thousand (tumen), bound by merit and iron discipline rather than tribe. Highly mobile and self-supplied with strings of remounts, they combined feigned retreats, encirclement, and psychological warfare with the rapid adoption of siege engineering learned from Chinese and Muslim experts. Under Genghis Khan and his successors this army shattered the Jin, Khwarazmian, Song, and Abbasid states, its coordinated campaigns and intelligence gathering giving it a decisive edge across radically different theatres.
Religion
The Mongols followed Tengrism, worshipping the Eternal Blue Sky (Tengri), but were famously tolerant of the religions of their subjects, exempting priests, imams, monks, and rabbis from taxes and hosting debates among faiths at the court in Karakorum. Over time the ruling houses adopted the religions of the lands they governed: the Ilkhans and the Golden Horde embraced Islam, while the Yuan court patronised Tibetan Buddhism under lamas like Phags-pa. This pragmatic pluralism, driven by statecraft as much as belief, allowed a tiny steppe elite to rule the world's great religious civilisations.
Architecture
As nomads the Mongols built few permanent monuments of their own, living in the portable felt tent (ger, or yurt) and raising their imperial capital at Karakorum only in the 1230s under Ögedei, where a cosmopolitan array of foreign craftsmen created works like a famous silver drinking fountain. Their architectural legacy lies chiefly in patronage: in China Kublai Khan founded and laid out Dadu (modern Beijing) on a grand cosmological plan, and across Persia and Central Asia Mongol successor states sponsored monumental Islamic tombs and mosques. The blue-tiled mausoleum of Öljaitü at Soltaniyeh exemplifies the splendid building fostered under Ilkhanid rule.
Trade
By uniting Eurasia under a single power the Mongols created the 'Pax Mongolica', an era of relative security that revitalised the Silk Road and allowed goods, people, and ideas to flow from China to the Mediterranean. They protected and taxed caravans, invested in trade through partnerships with Muslim merchant associations (ortogh), and maintained the yam, a relay system of post stations that sped couriers and envoys across the empire. It was along these routes that Marco Polo travelled to Kublai's court and, more ominously, that the Black Death would spread westward in the fourteenth century.
Technology
The Mongols were master appropriators of technology, assembling teams of Chinese and Muslim engineers to build the counterweight trebuchets and siege trains that reduced the walls of Baghdad and the Song fortresses. They accelerated the transmission of innovations across Eurasia—gunpowder weapons, printing, and Chinese medical and astronomical knowledge moved westward, while Persian and Arab science flowed east. Their command of logistics, cartography, and communications through the yam gave them an administrative technology as decisive as any weapon, binding an unprecedented expanse under coordinated rule.