Creation background This poem was written during the reign of Tang Tianbao (the reign of Emperor Xuanzong of the Tang Dynasty, 742~756). According to the records in the new and old books of the Tang Dynasty, during the Tianbao period, Emperor Xuanzong of the Tang Dynasty fought lightly to show off his prestige and remoteness, but failed several times, bringing about serious disasters to the people. The harsh facts converged in the poet’s mind, and had a fierce contradiction with his feelings of caring for the country and the people. He pondered, grieved and indignated, and his inner voice poured out, casting this famous article.