What background does the author of the poem "Thirty-five Ancient Styles" live in?

Antique: Ugly Women Set an Example is the thirty-fifth article in Fifty-nine Antique written by Li Bai, a great poet in the Tang Dynasty. The first four sentences of this poem satirize the artificial creation method with two allusions: the ugly girl in Handan and the toddler; The story of using thorns as monkeys criticizes the creative purpose of seeking official promotion and glory; The last four sentences call for poetry creation to return to the right path, and like-minded poets can appear. The whole poem criticizes the phenomenon and ethos that only pays attention to the form and ignores the social responsibility of poetry, and criticizes the affectation of poetry creation methods driven by this ethos, resulting in gorgeous and extravagant works, which deviates from the elegance and vulgarity, and calls for poetry creation to return to the right path.