What is the creative background of The Book of Songs?

The Book of Songs is a masterpiece of poetry creation in Shang and Zhou Dynasties in China, and its geographical origin covers Shaanxi, Shanxi, Hebei, Shandong, Henan, Hubei and other provinces. Among the authors are nobles, farmers and shepherds, as well as soldiers and slaves. In the pre-Qin period, The Book of Songs was collectively called The Book of Songs or The Three Hundred Poems. In the Han Dynasty, Confucianism regarded it as a classic before calling it a "classic". The existing Book of Songs was handed down by Mao Heng of Lu and Mao Ji of Zhao in the Western Han Dynasty. It has been popular in the world since the end of the Eastern Han Dynasty, so it is also called Shi Mao.