Sima Qian offended Emperor Wu of the Han Dynasty by protecting a general, and was imprisoned and tortured. Sima Qian was sad and angry, and tried to splash blood on the wall several times, which killed him. But when I thought that the historical records had not been completed, I gave up the idea, and then I wrote angrily. It took 18 years, and at the age of 60, I finally finished a brilliant masterpiece Historical Records with 520,000 words.