The pre-Qin dynasty was called "Poetry", or an integer poem was called "Poetry 300", which was originally just a collection of poems. However, since the Western Han Dynasty, Confucian scholars have regarded the Book of Songs as a classic, honored it as the Book of Songs, and listed it as the first of the Five Classics, which has been in use ever since.
In the Western Han Dynasty, Dong Zhongshu put forward the idea of "ousting a hundred schools of thought and respecting Confucianism alone" to Emperor Wu of Han Dynasty. As a result, the Five Classics of Poetry, Book, Rite, Book of Changes and Spring and Autumn Annals were honored as the Five Classics, and the Poems and the Book of Songs became Confucian classics.
Extended data:
The Book of Songs is the earliest collection of poems and the beginning of China's ancient poems. Collected poems from the early years of the Western Zhou Dynasty to the middle of the Spring and Autumn Period (pre-1 1 century to the 6th century), with a total of * * * 31/,among which 6 poems are full, that is, there are only titles but no contents, which is called full poems. ?
The Book of Songs is rich in content, reflecting labor and love, war and corvee, oppression and resistance, customs and marriage, ancestor worship and feasting, and even astronomical phenomena, landforms, animals and plants. It is a mirror of the social life of the Zhou Dynasty.
Baidu Encyclopedia-The Book of Songs