A Fragmented Empire, a Boy Emperor
After Emperor Huai of Jin was captured by Han forces in 311 CE, the Western Jin court collapsed into chaos. Regional warlords scrambled to install their own branches of the Sima clan as figureheads, establishing multiple “Provisional Imperial Secretariats” (xing tai) – temporary administrative centers meant for wartime governance.
The most credible claimant emerged in Chang’an: Sima Ye, grandson of Emperor Wu, just a teenager. Initially brought to Xuchang by Minister of Works Xun Fan, he was later escorted to Chang’an by Governor Jia Ya of Anding and Inspector Yan Ding of Yuzhou. After Jia Ya recaptured Chang’an from Han forces, Sima Ye was formally installed as Crown Prince.
When news arrived that Emperor Huai had been poisoned in 313 CE, Sima Ye ascended the throne as Emperor Min of Jin. With Luoyang in ruins, Chang’an became the new capital – though it was little more than a besieged outpost.
The South Holds Firm – But Hesitates to Act
While the north crumbled under attacks by Liu Yao, Shi Le, and Wang Mi, the south remained relatively stable. In Jiankang (formerly Jianye, renamed to avoid naming taboo with “Ye”), Prince Sima Rui of Langye – a distant cousin of the imperial line – became the de facto leader of Jin loyalists.
Emperor Min appointed Sima Rui Left Chancellor and Grand Commander, ordering him to launch a northern campaign to reclaim lost territory. He also commissioned Prince Sima Bao, Inspector Wang Jun of Youzhou, and Liu Kun of Bingzhou to rally troops.
But these decrees were ignored. Months passed before Sima Rui finally replied:”The Jiangdong region has only just stabilized. I cannot spare resources for a northern expedition.”
His reluctance was revealing. A famous anecdote illustrates his mindset: when asked by his young son Sima Shao whether Chang’an or the sun was farther, the boy first said the sun – because people came from Chang’an, but none from the sun. The next day, he reversed himself:”I see the sun every day – but never Chang’an. So Chang’an must be farther.”
Sima Rui smiled bitterly. The boy had spoken his own truth: the north was too distant, too dangerous.
The Great Southern Exodus
As central authority vanished, millions fled south. Aristocrats carried treasures; peasants dragged children through mud and hunger. The banks of the Yangtze River swarmed with refugees.
Among them was Zu Ti, a nobleman from Fan Yang Qiu County (modern Laishui, Hebei). Unlike ostentatious elites, Zu Ti used his wealth to feed neighbors and shelter friends. Respected and generous, he became a natural leader.
He had once shared a bed with his close friend Liu Kun, then Inspector of Bingzhou. The two would stay up late discussing statecraft and ambition. One night, at the crow of a rooster, Zu Ti kicked Liu Kun awake:”The rooster calls us to rise and train!” They leapt up and practiced swordplay in the dawn – a story that gave birth to the idiom “Rising at Cockcrow to Practice Swordsmanship”.
Disillusioned by the War of the Eight Princes, Zu Ti resigned his post. After Luoyang fell, he led hundreds of households south, giving his carriage to the elderly and sharing food and medicine freely. Refugees hailed him as their chief.
Sima Rui, impressed, appointed him Inspector of Xuzhou – though with no real army.
“If I Fail, May I Never Cross This River Again!”
In Jingkou (modern Zhenjiang), Zu Ti petitioned Sima Rui:
“The Jin collapse was self-inflicted – princes fought each other, inviting barbarians in. Now the northern people suffer terribly and long for liberation. If you send me north, they will rise in support. We can restore our land!”
But Sima Rui offered only 1,000 men’s worth of grain and 3,000 bolts of cloth – no soldiers, no weapons. He granted Zu Ti the empty titles of General Who Inspires Valor and Inspector of Yuzhou.
Undeterred, Zu Ti recruited over a hundred loyal kinsmen and patriots in Jingkou. In autumn 313, they boarded boats to cross the Yangtze.
At midstream, Zu Ti stood tall, seized an oar, and struck the hull with force. He declared:
“If I, Zu Ti, do not recover the Central Plains, may I never cross this river again!”
His companions vowed:”We follow you to the end!”
This moment became immortalized as “Beating the Oar Midstream” – a symbol of unshakable resolve.
Reclaiming the North, One City at a Time
Landing in Huaiyin (Huai’an, Jiangsu), Zu Ti farmed, forged weapons, and recruited soldiers. Locals flocked to his cause. Within months, he commanded 2,000 disciplined troops.
Marching into Yuzhou, he faced not only Shi Le’s forces but also local wubao – fortified village militias, some pro-Jin, others allied with Shi Le. Zu Ti mediated among them, uniting scattered strongholds under his banner.
He soon liberated several cities. When Shi Hu (Shi Le’s nephew) arrived with 50,000 men, Zu Ti met him at Junyi (Kaifeng). Despite being outnumbered, Zu Ti won a stunning victory. Shi Hu fled, leaving General Tao Bao to hold the western half of Junyi – while Zu Ti occupied the east.
For over a month, the two armies shared one city, starving side by side.
Then Zu Ti devised a ruse: he filled 1,000 sacks with sand, labeled them as grain, and paraded them into his sector. When Tao Bao’s scouts saw real grain accidentally dropped by Zu Ti’s men (planted as bait), they believed Zu Ti was well-supplied.
Morale in Tao Bao’s camp collapsed. Just then, Shi Le sent 1,000 donkeys laden with grain – but Zu Ti ambushed the convoy and seized it all. Hearing his supplies were gone, Tao Bao abandoned Junyi that night.
Zu Ti took the city, and dozens of wubao defected to his side.
A Benevolent Conqueror
Within years, Zu Ti liberated nearly all territory south of the Yellow River. Shi Le dared not send troops across.
But Zu Ti knew military success wasn’t enough. In reclaimed lands, he reduced taxes, promoted farming, and revived trade. Prosperity returned.
Yet he lived simply. To his family, he said:
“We crossed the river for the empire – not for wealth. I will own no estate. You must farm, chop wood, and live like common folk.”
People called him “Father Zu” and sang ballads praising his virtue.
News of his victories spread. Liu Kun, still fighting alone in Bingzhou, wrote joyfully:
“I always knew Zu Ti had great ambition. For years I’ve slept with my spear ready at dawn (‘Sleeping on a Spear, Awaiting Daybreak’ – zhen ge dai dan), fearing I’d fall behind him. Now he’s surpassed me – I am ashamed!”
Liu Kun’s Tragedy in the North
Liu Kun’s own struggle was heroic but tragic. After Luoyang fell, he sought alliance with the Xianbei chieftain Tuoba Yilu to attack Pingyang and rescue Emperor Huai.
But before he could act, his subordinate Gao Qiao betrayed him, surrendering Jinyang to Han forces. Liu Kun’s parents were captured and executed.
Grieving, Liu Kun fled to the mountains, regrouped, and – with Yilu’s help – recaptured Jinyang. He begged Yilu to press on to Pingyang, but the Xianbei leader refused:
“My men are exhausted. I’ll give you livestock and weapons – but I go no farther.”
Alone again, Liu Kun prepared for another campaign – until word arrived from Chang’an: Emperor Min was in dire peril.
The last flicker of Jin in the north was about to be extinguished.
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