In which period did China's Tang poetry reach its peak?

Early Tang Dynasty: Yu Shinan, Shangguan Yi, Wang Ji, Wang Fanzhi, Hanshan, Yang Jiong, Lu, Luo, Shen Quanqi, Song, Li Qiao, Su Xun, Cui Rong, Du, Zhang, Liu Xiyi and Chen Ziang.

Tang Dynasty: Zhang Jiuling, Zhang Shuo, He, Wang Wan, Meng Haoran, Chu Guangxi, Chang Jian, Zuyong, Wang Wei, Gao Shi, Cen Can, Wang Changling, Wang Zhihuan, Liu Wan, Zhang Wei, Li Bai, Du Fu, Bai Juyi, Jie Yuan, Gu Kuang, Dai Shulun, Zhang Ji, Wang Jian, Yuan Zhen and Li Shen.

Mid-Tang Dynasty: Wei, Liu Changqing, Li Yi, Li Duan, Lu Lun, Ji Zhongfu, Qian Qi, Si Kongshu, Miao Fa, Xia Houdun, Liu Yuxi, Liu Zongyuan, Han Yu, Meng Jiao, Jia Dao, Yao He, Li He,

Late Tang Dynasty: Du Mu, Li Shangyin, Wen, Wei Zhuang, Li Qunyu, Han Wo, Si Kongtu, Pi Rixiu, Nie, Du Xunhe.