Atlas: Expeditions Through Time

overland · diplomatic

Zhang Qian’s Mission to the Western Regions

Sent by Emperor Wu of Han to seek an alliance with the Yuezhi, Zhang Qian travelled west from Chang’an, survived long captivity by the Xiongnu, reached Central Asia, and returned with new information about lands and exchange networks beyond Han territory.

Dates139 BCE–126 BCE
Purposediplomatic mission, route finding, documentation
Outcomecompleted
Transportcaravan, horse, foot

Historical significance

The mission did not create the routes and societies it encountered, but it materially expanded Han knowledge and diplomacy across Central Asia. It helped establish the long-distance connections later known as the Silk Roads.

Significant moments

126 BCE

Zhang Qian returns to the Han court

After years of travel and captivity, Zhang Qian returned with detailed knowledge of Central Asian societies and routes that reshaped Han diplomacy toward the west.

Chang’an

Han mission to Central Asia and return

Chang’an to the Western Regions

139 BCE–128 BCE · mixed · approximate route

Representative route: Chang’an → Yumen Pass → Dunhuang → Kashgar → Ferghana → Samarkand → Balkh → Bactria

Return to Chang’an

128 BCE–126 BCE · mixed · approximate route

Representative route: Bactria → Kashgar → Dunhuang → Yumen Pass → Chang’an

People

  • Zhang Qian: Han diplomat and envoy whose mission to the Western Regions brought the Han court new knowledge of Central Asia.

Major places

  • Chang’an: Western Han imperial capital and departure point of Zhang Qian’s mission.
  • Yumen Pass: Representative Hexi Corridor gateway on the route between Han territory and the Western Regions.
  • Ferghana Valley: Central Asian valley identified with Han accounts of Dayuan; the plotted point represents the wider region.
  • Bactria: Historical Central Asian region reached by Zhang Qian; its precise itinerary within the region remains uncertain.
  • Dunhuang: Silk Road junction near the eastern end of the Tarim Basin, represented as an approximate corridor point rather than a documented stop.
  • Kashgar: Major western Tarim Basin oasis where caravan routes from the Pamirs entered the networks around the Taklamakan Desert.
  • Samarkand: Central Asian city visited on the journey through Chagatai territory toward Afghanistan.
  • Balkh: Historic caravan centre in northern Afghanistan linking routes toward the Pamirs, Transoxiana, and India.

Sources

  1. The Hong Kong Jockey Club Series: The Hong Kong Museum of History Exhibition on the Silk Road, Hong Kong Museum of History. Museum account of Zhang Qian’s mission, its Central Asian knowledge, and its relationship to later Silk Road connections.
  2. Silk Roads: Chang’an-Tianshan Corridor, UNESCO World Heritage Centre. Authoritative cultural-route context for the corridor and Zhang Qian’s diplomatic mission.
  3. Zhang Qian, Envoy to the Western Regions, Shaanxi Provincial Local Records Office. Chinese government historical account supporting the 139 BCE departure, captivity, return route, and 126 BCE arrival.
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