Why did it say that the imperial examination system promoted the prosperity of Tang poetry?
In a word, it can be summed up as Confucianism plus liberal arts. 
The Tang Dynasty was one of the most glorious periods in Chinese history, and it was also the first era of poetry. With its rich subject matter, diverse forms, exquisite skills and profound thoughts, Tang poetry has become a cultural treasure of the Chinese nation and has influenced the literary creation and aesthetic concepts of later generations. The prosperity of Tang poetry was closely related to the social, political, economic, cultural and other aspects of the Tang Dynasty, and one of the most important factors was the establishment and improvement of the imperial examination system. The imperial examination system was a major political reform of the Tang Dynasty, and it was the unification of the Tang Dynasty.
First, prosperity and openness created favorable conditions, and also provided a powerful impetus for the culture, education, and thought of the Tang Dynasty. This article will focus on the following three aspects of the imperial examination system to promote the prosperity of Tang poetry. 1. The development process and characteristics of the imperial examination system, as well as its impact on the society and culture of the Tang Dynasty. The imperial examination system is an important political system in ancient China, which selects talents to enter the bureaucratic system through examinations, so as to achieve political stability and efficiency. The rudiments of the imperial examination system can be traced back to the Han Dynasty's conquest system, but it was Yang Jian, Emperor Wen, of the Sui Dynasty, who really laid the foundation of the imperial examination system. Emperor Wen of Sui abolished the nine-rank Zhongzheng system of the Wei, Jin, Southern and Northern Dynasties in 587 A.D., and implemented an examination system to select talents, which was the first selection system in Chinese history with examinations as the main means, and it was also the beginning of the imperial examination system. Emperor Wen of Sui's examination system was mainly divided into two subjects, the Ming Jing was to examine the understanding and memory of Confucian classics, and the Jinshi was to examine the writing and discussion of articles. Although the examination system of Emperor Wen of Sui was only implemented for a short period of more than ten years, it laid the blueprint for the later imperial examination system. The Tang Dynasty was a period of development and maturity of the imperial examination system, which inherited the examination system of the Sui Dynasty, and on this basis, it was reformed and improved, forming a relatively complete set of systems, laying the foundation for the imperial examinations for future generations. The imperial examinations in the Tang Dynasty were divided into two categories: regular examinations held every year, and regular examinations set by the emperor temporarily. The regular course is divided into Xiucai, Ming Jing, Jinshi, Ming Law, Ming Shu, Ming Arithmetic, which are mainly Ming Jing and Jinshi, Ming Jing is to investigate the pasting of the scriptures and Moyi (Confucian classics), Jinshi is to test the current affairs, paste the scriptures and essays. Jinshi was the spire subject of the Tang Dynasty. Among them, the quality of essays is the main admission criterion, and the actual Jinshi examination is formed as the literature subject examination. Among them, the essays in the Jinshi Department are mainly tested on poetry and fu. Here, by the way, pay tribute to the imperial examination system of the Song Dynasty. The imperial examination system reached its extreme in the Song Dynasty. The Song Dynasty further improved the imperial examination system of the Tang Dynasty and established a fairly complete system. The fairness of the imperial examination system in the Song Dynasty was greatly improved, and the children and grandchildren of many ministers were not admitted to the imperial examination, and could only serve as middle and low-level **. The imperial examination system of the Tang Dynasty had the following characteristics: The purpose of the imperial examination system was to select talented, virtuous, and loyal talents to maintain the unity and prosperity of the Tang Dynasty. The imperial examination system of the Tang Dynasty emphasized the candidate's moral character and loyalty to the monarch and patriotism, and the content of the examination was also closely related to Confucian moral and political theory. The purpose of the imperial examination system is to "take talents from people and not stick to one pattern", that is, regardless of origin, status, wealth or poverty, as long as they have talent, they will have the opportunity to enter the officialdom, so as to achieve social mobility and fairness. The form of the imperial examination system is a selection method based on examinations and supplemented by recommendations. The examination is the core of the imperial examination system, and it is the main means of examining the knowledge, ability, and talent of candidates. The process of the examination is divided into **, that is, the county examination, the government examination and the palace examination, each level has strict regulations and standards, and the content of the examination also changes with the changes of the times. Recommendation is a supplement to the imperial examination system, which is to select those talented talents who have not taken the examination or have not been in the examination, such as Gongsheng, Xiaolian, Maocai, etc. The methods of recommendation include the emperor's special decree, the order of the imperial court, the recommendation of the locality, etc., and the recommended objects also have different conditions and requirements. As a result of the imperial examination system, a class of "scholars" was formed by examinations, which was the dominant social, political, and cultural force in the Tang Dynasty. Scholars refer to those who have entered the bureaucracy through the imperial examination or recommendation, they have a common cultural background, values and interests, and they are both the rulers of the Tang Dynasty and the cultural creators of the Tang Dynasty. The formation of the scholar class broke the monopoly of the previous clan and gate valves, made social mobility and competition more active, and also made the dissemination and innovation of culture more extensive and diverse. The imperial examination system had a profound impact on the society and culture of the Tang Dynasty, mainly in the following aspects: The imperial examination system promoted the unity and prosperity of the Tang Dynasty. The imperial examination system provided a group of talented, virtuous, and loyal talents for the politics of the Tang Dynasty, making the politics of the Tang Dynasty more stable and effective, and also making the military, diplomatic, and economic aspects of the Tang Dynasty developed and strengthened. The imperial examination system also provided conditions for the Tang Dynasty's openness and inclusiveness, making the Tang Dynasty's culture more diverse and vibrant, and making the Tang Dynasty's influence more extensive and far-reaching. The imperial examination system promoted education and scholarship in the Tang Dynasty. The imperial examination system provided the impetus and goal for education in the Tang Dynasty, making education in the Tang Dynasty more popular and developed, and also making the Tang Dynasty's scholarship more prosperous and innovative. The imperial examination system made the Confucian classics the basis of education and the content of examinations, and also made Confucianism the mainstream and orthodoxy of the Tang Dynasty. The imperial examination system also led to the development of other disciplines. 
2. The development process and characteristics of Tang Dynasty poetry, as well as its reflection and contribution to Tang Dynasty society and culture. The Tang Dynasty was the first era of poetry, and Tang poetry, with its rich themes, diverse forms, exquisite skills and profound thoughts, became a cultural treasure of the Chinese nation, and influenced the literary creation and aesthetic concepts of later generations. The development of Tang poetry can be divided into four stages, namely the early Tang Dynasty, the prosperous Tang Dynasty, the Middle Tang Dynasty and the late Tang Dynasty, each of which has its representative poets and poetic styles, and is also closely related to the society and culture of the Tang Dynasty. The development process and characteristics of Tang poetry are as follows:Chu Tang:The early Tang Dynasty refers to the period from the establishment of the Tang Dynasty to the reign of Zhenguan, which lasted from approximately 618 AD to 649 AD. During this period, Tang poetry mainly inherited and developed the poetic traditions of the pre-Qin, Han and Wei dynasties, the Six Dynasties, and the Sui and Tang dynasties, and mainly included three forms: Yuefu, ancient style poetry and modern style poetry. Yuefu refers to poems based on folk songs, processed and created by literati, which have a strong breath of life and emotional expression, reflecting all aspects of society. Ancient style poetry refers to poems that are mainly based on five or seven words, not limited by plainness and rhyme, free and flexible, which has a simple, bold and majestic style, and expresses the poet's personality and thoughts. Near-style poetry refers to poems that are mainly based on five or seven words, subject to the norms of plainness and rhyme, and are rigorous and neat, which has a delicate, elegant and fresh style, and shows the poet's skills and art. The representative poets of the early Tang Dynasty include Wang Bo, Yang Jiong, Lu Zhaolin, Luo Bin Wang, etc., who are known as the "Four Masters of the Early Tang Dynasty", and their poems have created a new situation in Tang Dynasty poetry, and also reflect the initial stability and development of Tang Dynasty politics and culture. Sheng Tang:The Tang Dynasty refers to the period from the reign of Zhenguan to the Anshi Rebellion, from about 649 AD to 755 AD. During this period, Tang poetry mainly innovated and developed near-style poetry, which mainly had four forms: five-character quatrain, five-character quatrain, seven-character quatrain, and seven-character quatrain. Near-style poetry is the mainstream of poetry in the Tang Dynasty, which is based on the ancient style poetry, adding the requirements of plainness and rhyme, making the poetry more standardized and beautiful, but also more rich and changeable. Although the form of the near-body poem is fixed, the content is very extensive, involving politics, military, history, philosophy, religion, culture, landscape, emotion and other aspects, showing the prosperity and diversity of the Tang Dynasty. The representative poets of the Tang Dynasty include Li Bai, Du Fu, Wang Wei, Meng Haoran, Gao Shi, Cen Shen, Wang Changling, etc., whose poems reached the peak of Tang Dynasty poetry and also reflected the highest level of society and culture in the Tang Dynasty. Zhongtang:The Middle Tang Dynasty refers to the period from the Anshi Rebellion to the Huangchao Rebellion, from approximately 755 AD to 884 AD. During this period, Tang poetry mainly inherited and developed the poetry of the Tang Dynasty, and there were mainly four forms: five-character quatrain, five-character quatrain, seven-character quatrain, and seven-character poem. The poetry of the Tang Dynasty has not changed much in form, but there have been obvious changes in content, which are mainly reflected in the following aspects: First, the subject matter of the poems is more extensive and profound, involving not only politics, military, history, philosophy, religion, culture, etc., but also social, economic, people's livelihood, law, science and other aspects, reflecting the social and cultural changes and development of the Tang Dynasty. Second, the style of poetry is more diverse and delicate, not only with the bold, majestic, fresh and elegant style of the Tang Dynasty, but also with the tragic, melancholy, graceful, heroic and other styles of the Tang Dynasty, reflecting the personality and emotions of the poets of the Tang Dynasty. Third, the skills of poetry are more exquisite and innovative, not only with the skills of the Tang Dynasty, such as leveling, rhyme, duality, and comparison, but also with the borrowing, metaphor, symbolism, and suggestion skills of the Tang Dynasty, reflecting the talent and art of the poets of the Tang Dynasty. The representative poets of the Tang Dynasty include Liu Zongyuan, Meng Jiao, Han Yu, Bai Juyi, Lu Lun, Li He, Li Yi, Liu Yuxi, Jia Dao, etc., whose poems inherited the tradition of the Tang Dynasty and created a new style of Tang Dynasty poetry, and also reflected the social and cultural crisis and transformation of the Tang Dynasty. Late Tang:The Late Tang Dynasty refers to the period from the Huangchao Rebellion to the fall of the Tang Dynasty, from approximately 884 AD to 907 AD. The representative poets of the late Tang Dynasty include Wen Tingyun, Li Shangyin, Du Mu, etc. During this period, Tang poetry mainly broke through and surpassed the tradition of Tang Dynasty poetry, and there were four main forms: five-character quatrain, five-character quatrain, seven-character quatrain, and seven-character quatrain. The poetry of the late Tang Dynasty did not change much in form, but there were great changes in content, which were mainly reflected in the following aspects: First, the subject matter of the poems was more profound and radical, involving not only politics, military, history, philosophy, religion, culture, etc., but also life, ideals, beliefs, freedom, resistance, etc., reflecting the social and cultural turmoil and decline of the Tang Dynasty. Second, the style of poetry is more changeable and peculiar, not only with the tragic, melancholy, graceful, heroic and other styles of the Middle Tang Dynasty, but also with the fresh, beautiful, bold and witty styles of the late Tang Dynasty, reflecting the mentality and taste of the poets of the Tang Dynasty. The third is that the technique of poetry is more flexible and free. But in general, it was a period of weakness for Tang poetry. 
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3. Why did you choose Tang poetry for the imperial examination?
The imperial examination system was an important factor in the prosperity of poetry in the Tang Dynasty, and it was closely related to Tang poetry, mainly in the following aspects: Historical background: The Tang Dynasty was one of the most glorious periods in Chinese history, and it was also the first era of poetry. The historical background of the Tang Dynasty provided favorable conditions for the prosperity of Tang poetry, mainly in the following aspects: First, the political unity and stability of the Tang Dynasty made the social order and people's livelihood stable, and also made cultural exchanges and innovations smooth. Second, the economic development and prosperity of the Tang Dynasty enriched material and cultural life, and also increased cultural demand and consumption. Third, the openness and inclusiveness of the Tang Dynasty led to the integration and exchange of various ethnicities, religions and cultures, as well as the diversity and vitality of culture. Fourth, the crisis and transformation of the Tang Dynasty led to social turmoil and cultural decline, as well as cultural reflection and innovation. Politics: The imperial examination system was an important political system in the Tang Dynasty, which provided a group of talented, virtuous and loyal talents for the politics of the Tang Dynasty, and also provided a group of talented, emotional and thoughtful poets for the poetry of the Tang Dynasty. The relationship between the imperial examination system and Tang poetry mainly has the following aspects: First, the imperial examination system is an important creative driving force for Tang poetry, and many poets have entered the officialdom through the imperial examination or recommendation, and their poetry is not only their examination-oriented works, but also their political aspirations and ideals. Second, the imperial examination system is an important creative content of Tang poetry, and many poets are the first of the Tang Dynasty, and their poetry is not only their political witness, but also their political commentary and criticism. Third, the imperial examination system is an important form of Tang poetry, and many poets take subjects such as poetry and strategy as examinations, and their poetry is not only their examination skills, but also their literary art. Economic: The economy of the Tang Dynasty was one of the most developed periods in Chinese history, and it provided a rich material foundation and cultural resources for the poetry of the Tang Dynasty. The relationship between the economy of the Tang Dynasty and Tang poetry mainly has the following aspects: First, the economic prosperity of the Tang Dynasty improved the living standards and cultural standards of poets, and also diversified the themes and styles of poets. Second, the economic opening up of the Tang Dynasty expanded the poet's vision and knowledge, and also enriched the poet's creative content and creative skills. Third, the economic crisis of the Tang Dynasty made the poet's life difficult and cultural sinking, and also deepened the poet's creative emotions and creative thoughts. Ideological and cultural aspects: The ideology and culture of the Tang Dynasty was one of the most diverse periods in Chinese history, which provided a broad ideological space and cultural atmosphere for the poetry of the Tang Dynasty. The relationship between the ideology and culture of the Tang Dynasty and Tang poetry mainly has the following aspects: First, the ideology and culture of the Tang Dynasty was dominated by Confucianism, but it was also compatible with various ideas such as Taoism, Buddhism, and Legalism, which made the poet's ideological concepts and value orientations diversified, and also made the poet's creative themes and creative attitudes change. Second, the ideology and culture of the Tang Dynasty took poetry as the main literary form, but it also covered various literary forms such as prose and opera, which improved the poet's literary literacy and literary accomplishment, and also diversified the poet's creative methods and creative styles. Third, the ideology and culture of the Tang Dynasty took poetry as the main cultural expression, but it also included various cultural expressions such as painting and dance, which enhanced the poet's cultural feelings and cultural appreciation, and also diversified the poet's creative methods and creative styles. 
Add a comment of 140 words or less (optional).Conclusion section:The imperial examination system innovated the form and style of poetry creation, making poetry no longer a fixed rhythm and norm, but a flexible change and creation.
The imperial examination system promoted the creation and prosperity of literature, especially the creation and prosperity of poetry, making poetry the main mode of expression and an important means of advancement for scholars, stimulating the creative desire and creative talent of poets, and also promoting the improvement of poetry skills and standards. This makes the poet in the form and style of poetry also have a great innovation and change, the poet is no longer confined to the traditional rhythm and norms, but according to their own artistic conception and emotion, flexible use and change of the form and style of poetry, to create their own unique poetry. This makes the form and style of poetry also have a great richness and diversity, poetry not only ancient style poems and close style poems, but also Yuefu and song lines, not only five words and seven words, but also four words and six words, not only quatrains and rhythmic poems, but also long and narrative, not only plain and rhyme, but also duality and comparison, not only fresh and elegant, but also bold and bizarre, not only romantic and lyrical, but also ironic and ridicule, not only elegant and standardized, but also free and creative. To sum up, the imperial examination system has a close relationship with the prosperity of Tang poetry, and it can be said that the imperial examination prospered Tang poetry. The imperial examination system provided a talent base and guarantee for the prosperity of Tang poetry, stimulated the poets' creative desire and creative talent, and also promoted the improvement of poetry skills and standards. The imperial examination system has expanded the crowd and scope of poetry creation, enriched the subject matter and content of poetry creation, and innovated the form and style of poetry creation, so that poetry is no longer a single lyrical scene, but a diverse reflection of society and life, no longer a fixed rhythm and norms, but flexible change and creation. The imperial examination system and the prosperity of Tang poetry are a glorious period in Chinese history, an era of peak in Chinese culture, and a strange phenomenon in world literature, which deserves our in-depth study and appreciation.