Tibetan Empire

Politics and institutions

The Tibetan Empire grew out of the Yarlung dynasty in the seventh century. Its founding ruler, Songtsen Gampo, subdued rival plateau kingdoms, moved the court to Lhasa around 630, and created a script, law code and tax registers for his new state. Power was shared between the emperor and great ministerial clans such as the Gar, whose feuds repeatedly shook the throne. Trisong Detsen and his successors expanded the empire until the Sino-Tibetan treaty of 821–823 fixed a stable frontier with Tang China. After King Langdarma was assassinated in 842, succession disputes and regional warlords broke the empire into the fragmented polities of the post-imperial era.

Economy and finance

The imperial economy rested on highland pastoralism and barley agriculture, supplemented by mining, crafts and control of trade routes. Tibetan armies and officials drew wealth from the Tarim Basin oases, Gansu and the Silk Road, and the empire taxed caravans and exacted tribute from dependent kingdoms. Gold, silver, copper and tin were noted by Chinese sources, and Tibetan armor was prized across Inner Asia. Campaigns were expected to live off plunder, while monasteries and noble estates accumulated land and labor. The integration of oasis commerce with plateau production made the empire wealthy enough to challenge Tang China for two centuries.

Society and culture

Tibetan society combined pastoral clans, farming valleys and a warrior aristocracy. The Tibetan script, created under Songtsen Gampo, made possible a written law code and the later translation of Buddhist texts. Buddhism gained royal patronage under Trisong Detsen, who founded Samye, the first monastery, with Indian teachers, and the Lhasa debate of the eighth century set the doctrinal direction of Tibetan Buddhism. Bön and local cults persisted, while Chinese observers described a people living in felt tents and walled towns, herding yaks and horses and growing barley, buckwheat and pulses. Monasteries would later become great landowners and political actors.

Military and frontiers

Tibetan armies were famous for heavy armor. A Chinese observer wrote that men and horses wore fine chain mail covering all but the eyes, that soldiers fought on foot in ranks and that their lances were longer and thinner than Chinese ones. Officers carried golden arrows as badges of rank, assembled annually to swear loyalty and every three years for sacrifices. Campaigns carried little grain and relied on plunder. With this force Tibet seized the Tarim oases in 670, raided deep into Sichuan and Gansu, occupied Chang'an for fifteen days in 763, and fought the Uyghurs, Nanzhao and the Abbasid Caliphate on several fronts.

Foreign relations

Tibet's foreign policy combined marriage diplomacy, war and treaty. Songtsen Gampo married the Tang princess Wencheng in 641 and a Nepalese princess, binding the plateau to its neighbours; later emperors took Princess Jincheng and intervened in the Tarim and Nanzhao. Tibetan armies allied with the Türgesh against the Arabs, fought the Uyghurs for control of the northern routes, and negotiated the 821–823 treaty with Tang, whose bilingual inscription still stands at the Jokhang in Lhasa. The empire also exacted tribute from Nepal and projected power into Bengal and the Pamirs, making it the greatest highland state of its age.

Legacy and influence

The empire's lasting legacy was Tibetan Buddhism and the Tibetan script, which gave the plateau a common religion, literature and administrative language. The great monasteries, the Jokhang and the Potala hill, and the Dunhuang manuscripts preserve its religious and documentary culture. Politically, the empire dissolved after 842 into regional principalities and never reunified, but the memory of the Yarlung kings and the ideal of a Buddhist realm shaped later Tibetan states and the historiography of Tibet itself.