Which traditional festival is written about in the ancient poem Yuan Day

The ancient poem "New Year's Day" is about the Spring Festival, which is a seven-character stanza composed by Wang Anshi, a politician of the Northern Song Dynasty. The poem describes the lively, joyful and moving scene of renewal on the New Year's Day, expressing the author's ideological feelings of political innovation, full of joy and positive spirit.

Originally:

A year is over in the sound of firecrackers, and the spring breeze sends warmth into the tassel.

A thousand doors and tens of thousands of tels, always changing the new peach for the old one.

Background:

This poem was written at the time when the author first became a minister and started to carry out his new policy. 1067, when Emperor Shenzong succeeded to the throne of the Song Dynasty, Wang Anshi was appointed as the prefect of Jiangning, and immediately became a minister and a scholar of the Hanlin Academy, and in order to get rid of the political and economic crises that the Song Dynasty was facing as well as the difficulties of the Liao and Xi Xia's constant intrusion, Emperor Shenzong summoned Wang to "go over and over again" to the palace in 1068. In 1068, Emperor Shenzong summoned Wang Anshi to "enter the country for a time", and he wrote a letter advocating a change of law. In the following year, Wang Anshi was appointed as the Counselor of Political Affairs and presided over the change of law. In the New Year of the same year, Wang Anshi saw the family busy preparing for the Spring Festival, associated with the new atmosphere at the beginning of the change of law, and had the feeling to create this poem.