Initially, lyrics were mainly popular among the people, and the "Dunhuang Quzi Ci Collection" included more than 160 works, mostly folk songs from the prosperous Tang Dynasty to the end of the Tang Dynasty and the Five Dynasties. Around the middle Tang Dynasty, poets such as Zhang Zhihe, Wei Yingwu, Bai Juyi, Liu Yuxi, and others began to write ci, introducing this literary style into the literary world. During the late Tang and Five Dynasties period, there was a great development in literati poetry. The works of Wen Tingyun, a late Tang poet, and the Southern Tang poets represented by Li Yu and Feng Yansi, as well as those of the "Huajian School" represented by him, made important contributions to the maturity of the poetry style and the establishment of the basic lyrical style. Ci finally stands out beyond poetry and has become one of the most prominent literary genres in ancient China.