Combined with poetry, talk about why Du Fu's poems are called the history of poetry.

Du Fu's poems are called "the history of poetry". However, Du Fu's poetry, as a "history of poetry", is not an objective narrative. They write history in the style of poetry, but at the same time, they deeply reflect the reality and express the author's mood through a unique style. Pu Qilong, a Qing Dynasty man, said: "Poems of Shaoling are a person's temperament, and things of the Three Dynasties must be sent to others." (Reading-Jie's Poems on Chronology of Shaoling) Most of Du Fu's poems involve major issues such as politics, economy, military affairs and people's life in Xuanzong, Suzong and Daizong periods, but they are permeated with the poet's true feelings everywhere. For example, Du Fu's two masterpieces in his middle age, From Beijing to Fengxian, Singing 500 Words and Northern Expedition, contain lyricism, narration, discipline, reasoning, observing nature, exposing social contradictions, inner conflicts, political aspirations and opinions, personal experiences and family misfortunes, disasters of the country and people, and hopes for the future. These two long poems contain such rich contents that the author's emotions fluctuate and his language gallops, which proves that he is keenly sensitive to various phenomena of nature and society in this unfortunate era. Such a poem is a self-report of the poet's life and heart, and also a portrayal of the times and society. The fate of individuals is closely related to the fate of the people of the country, and the two have also reached a high degree of artistic integration. Another example is "Going to Jionji Pagoda with Gentlemen" and "Aijiangtou", which are short in length, but also have this feature.

Since the late Tianbao period, Du Fu has written a large number of poems on current affairs, whether stating political views, such as Washing Soldiers and Feeling written by Zizhou. Or expose the dissolute cruelty of the rulers, such as "Two Ways", "Two Memories of the Past" and "Yun 'an Three quatrains"; Or allegorical satire, such as "Phoenix"

Huangtai, sick orange, dry brown, guest seat; Or sympathy and care for the poor people, such as "the hut was blown by the autumn wind" and "Wu Lang again"; It is a combination of personal feelings and facts. There are also many long stories, some of which record the major events of the country in the past decade, such as "Huai Fu Shu Huai" and "Up to now"; Some describe local chaos, such as Caotang and Hengzhou; Some reminisce about the past, such as "Forced Random Story" and "Farewell"; What's more, as Pu Qilong said, "Give up the world or give up your life" (Reading Du Fu's Outline) contains strong lyrical elements.

The theme of war occupies a considerable number in Du Fu's poems. Du Fu held different attitudes towards different types of wars. Oppose the imperial court's belligerence and waste of manpower and material resources, such as Garage Shop, Kuizhou Letter, and Going Down the Hill in the Backyard; It is supportive to quell the rebellion and resist foreign aggression, such as "Watching Western Soldiers Stand by in Guanzhong" and "Watching Soldiers" in the early period of the An Shi Rebellion, and "Chronicle" written when Tubo invaded. What these poems condemn and praise is very clear. There are also some poems about war, both praising and condemning. Two groups of famous poems, before and after the dike, describe the changes of soldiers' mood in the process of joining the army, and actually reflect the poets' different views on the war from different angles. These two groups of poems praise the heroic scene on the battlefield, how soldiers are good at fighting, brave in sacrifice and win; He also condemned the king's endless frontier exploration and the arrogance and extravagance of the lords, which made the record lose its positive significance. These two groups of poems summarize the unfortunate fate of countless heroic soldiers through the confession of a soldier. Another example is "Three Officials" and "Three Partings", which more specifically express the author's inner conflict. On the way to Luoyang, Du Fu saw violent police forcibly recruiting young boys and lonely old people. He accused these people and condemned those officials, but when he thought of the lack of able-bodied men and the current enemies, he changed his tone and said a few words of comfort or encouragement to the conscripts as much as possible. In Yuan Dynasty, Du Fu wrote many poems about nature. The purpose of his singing is often to connect himself with current events. Poetry criticism and past dynasties' comments have made a lot of discussions on Du Shili's high degree of "scene blending". Du Fu's poems are not only highly integrated with scenes, but also with feelings, scenes and current events. When writing scenes and expressing feelings, the author seldom leaves reality, thinking of the era of war and chaos and people's misery. For example, when he was trapped in occupied Chang 'an, he wrote "Spring Watch" and when he entered Shu, he wrote "Jianmenguan", which are the most representative. In his later years, Du Fu made great achievements in this kind of poems, such as The Pavilion of Five Laws, On the River, Jianghan, Climbing the Building, Fermented Bean Curd, Night in the Pavilion, Eight Poems of Autumn Prosperity, etc., which are all famous works with a blend of scenes and current affairs.