Couplets, also known as antithetical couplets, door couplets, Spring Festival couplets, couplets, peach symbols and couplets (named after the pillars hanging in halls and houses in ancient times), are a kind of dual literature.
With the rise of poetry in the Tang Dynasty, prose couplets were excluded. Prose couplets are generally informal, straightforward, and do not avoid repetition. They do not overemphasize the equivalence of parts of speech without losing duality.
Spring Festival couplets have a long history. It is said that they originated from Meng Changjun, the master of Shu after the Five Dynasties. He wrote an inscription on the peach symbol on the door panel of the dormitory: "When the New Year arrives, the number of festivals will be in Changchun", which means the words "Write the peach symbol" (see Shu Lang). This is the earliest couplet in China and the first Spring Festival couplet.