Season 1 · Episode 19 · 5 min read
How Zhang Qian Opened the Road to the Western Regions
Zhang Qian left Chang'an hoping to bring the Yuezhi into alliance, but instead he opened a western world Han had never truly seen before.
In the last episode, Wei Qing and Huo Qubing had pushed Han's blade deep into the steppe.
Yet before Han fully embraced large-scale war against the Xiongnu, Emperor Wu had also hoped for another strategy. If a western enemy of the Xiongnu could be drawn into alliance, Han might fight from two directions.
The Ally He Wanted Was the Yuezhi
Han learned from surrendered Xiongnu that the Yuezhi had once lived nearer Dunhuang and the Qilian region before being crushed westward. Their king had even been killed by the Xiongnu, and his skull made into a drinking vessel.
It sounded like the kind of blood feud that might support alliance.
The problem was distance. Han did not clearly know where the Yuezhi now were or how to reach them safely. Even so, one man volunteered.
That man was Zhang Qian.
He Set Out with a Mission and Entered a World Han Hardly Understood
Zhang Qian served as a court gentleman under Emperor Wu. The emperor judged him steady and bold enough for the task and sent him west with more than a hundred followers and a guide-interpreter named Tangyi Fu.
The journey barely began before disaster struck.
The Xiongnu Captured Him and Held Him for Ten Years
As the mission moved west through the Hexi route, it was seized by Xiongnu forces and brought before their ruler.
The logic of the detention was simple. Why, they asked, should a Han envoy pass through Xiongnu-controlled space to seek out a people living beyond them? Zhang Qian was held for about ten years.
He was not kept in chains the whole time. He was given a Xiongnu wife and even had a child. But he never let go of the original mission.
Eventually he and Tangyi Fu escaped.
He Reached Dayuan, Kangju, and Then the Greater Yuezhi
After a desperate run through harsh country, Zhang Qian reached Dayuan, the state later famous to Han for its exceptional horses. The rulers there treated the Han mission warmly, and from there Zhang Qian moved onward through Kangju to the Greater Yuezhi.
At last he had found the people Emperor Wu wanted.
Yet the answer was not the one Han had hoped for.
The Yuezhi Had No Desire to March Back East for Revenge
By the time Zhang Qian reached them, the Greater Yuezhi had already settled in richer western lands and grown comfortable there.
The old hatred of the Xiongnu had not vanished, but it was no longer enough to make them abandon a stable new life and join Han in distant war.
Zhang Qian stayed and argued for more than a year.
They still refused.
Even in Failure, He Returned with Something Greater Than an Alliance
On the return route he was captured by the Xiongnu again. Only later, amid disorder among them, did he escape and finally reach Han soil.
The entire journey had taken thirteen years. Of the original party, only Zhang Qian and Tangyi Fu truly made it back.
Yet what he brought to Emperor Wu was not only the report of a failed alliance. It was a map in words.
Zhang Qian Brought a Whole Western Geography into Han's Mind
He described Dayuan, Kangju, the Greater Yuezhi, Daxia, Wusun, Parthia, and lands farther still. He explained directions, routes, strengths, products, and political conditions as well as he could.
Before this, the west beyond the steppe had been little more than rumor. After Zhang Qian, it became a world of named states and possible roads.
He even noticed Sichuan bamboo and cloth in Daxia and realized they must have reached there through the southwest by way of India. That insight led Emperor Wu to begin exploring a possible southwestern route as well.
His First Mission Failed in Its Immediate Aim, but Succeeded Historically
Emperor Wu had sent Zhang Qian looking for one ally.
Zhang Qian returned having opened a whole horizon.
From then on, the emperor's interest in the Western Regions never faded.
His Second Mission Was More Diplomatic and More Grand
Once Hexi had been secured better through Han military success, Zhang Qian proposed another western move focused on Wusun, a people that might be drawn away from Xiongnu influence.
This time the embassy was much larger: hundreds of men, pack animals, and rich gifts. Zhang Qian was no longer simply seeking a rumor. He was representing Han's scale.
Wusun did not fully commit as Han hoped, but it did send envoys back with Zhang Qian to see Chang'an for themselves.
That mattered.
Once Western Envoys Began Arriving in Chang'an, the Road Was Opened for Good
Sub-envoys sent out by Zhang Qian reached multiple states, and many western envoys began appearing at Han court in turn.
A route that had once barely existed in Han political imagination now carried missions, gifts, merchants, and information in both directions. Later generations would call what Zhang Qian did "cutting open the void."
The phrase fits. He did not finish the western connection by himself, but he opened it.
Opening the Road Also Brought New Troubles
Once routes existed, greed moved along them too. Some Han envoys used their positions badly. Some western states grew irritated. Trade, diplomacy, and friction all increased together.
And among the western goods now exciting Emperor Wu, one thing soon drew special passion.
Horses.
In the next episode, we turn to why Emperor Wu sent armies all the way to Dayuan for the famed heavenly horses.