Li Ling was a renowned general under Emperor Han Wu-di, known for his bravery and undefeated record.
During one campaign, his army was vastly outnumbered by the Huns. Despite their courageous fight, they were eventually captured. Li Ling surrendered, intending to bide his time for a counterattack.
When news of his surrender reached the capital, jealous ministers spoke ill of him before the emperor. Enraged, the emperor ordered the execution of Li Ling's wife and mother.
Sima Qian, who held Li Ling in high esteem, believed there must be a reason for the surrender and urged the emperor not to trust rumors. This angered the emperor, who imprisoned and severely punished Sima Qian.
While imprisoned, Sima Qian wrote a long letter to a friend, stating: "I am currently writing a historical work. If I die now, it would be as insignificant as losing a single hair from nine oxen. I am willing to endure this punishment to complete my book." Sima Qian ultimately finished his masterpiece—the renowned Shiji (Records of the Grand Historian).