Why are Du Fu's poems called the history of poetry?

1, Du Fu used his poems to record the history of the era in which he lived, reflecting the vast social life, just like a history, especially the social unrest caused by the Anshi Rebellion, which is recorded in detail in his poems. His poems can be regarded as history, which can be proved and supplemented, so it is called "the history of poetry".

2. Du Fu (A.D. 7 12- A.D. 770), with beautiful words, is famous for his young tombs and old nights. Han nationality, originally from Xiangyang, is from Gongxian County, Henan Province (now Gongyi, Henan Province). A great realistic poet in Tang Dynasty, together with Li Bai, was called "Du Li". In order to distinguish Li Shangyin, Du Mu and Xiao Du Li, Du Fu and Li Bai are also called Da Du Li, and Du Fu is often called Lao Du.