2. The New Yuefu Movement and the Poetry Innovation Movement were initiated by poets such as Bai Juyi, Yuan Zhen, Zhang Ji and Li Shen in the Tang Dynasty. They advocated restoring the system of ancient poetry anthology, carrying forward the tradition of satirizing current affairs in the Book of Songs and Yuefu in Han and Wei Dynasties, and making poetry play the role of "monitoring current affairs" and "releasing human feelings", emphasizing the use of self-created new Yuefu themes to write current affairs, hence the name.