What is a birthday?

[Explanation of Idioms] The eight-character heavenly stems and earthly branches, which indicates the year, month, day and time of a person's birth, can be used by superstitious fortune tellers to calculate a person's fate.

[Allusion] Lao She's Under the Red Flag: "She is a living book, remembering all her relatives and friends."

[The source of allusions] Ming Lanling laughed and gave birth to the sixty-second chapter of Jin Ping Mei: "Mr. Xu asked his surname under the lamp, and his birth date was approved."

[useful] useful

[emotional color] commendatory term

[Grammatical Usage] Used as an object or attribute; Used for superstitious activities, etc

[Idiom structure] Combination form

[Date of birth] Modern

Extended data:

Birthday plays an important role in Han folk beliefs, and ancient astrologers calculate people's fate accordingly. Monthly trunk and annual trunk branches refer to 1 chart and monthly table. If the annual stem is a or self, then the stem in the first month of that year is C Yin; If the annual stem is B or G, the stem in the first month of that year is Wuyin; If the annual work is C or Xin, the work in the first month of that year is Geng Yin; If the annual stem is Ding or Ren, then the stem in the first month of that year is Ren Yin; If the year's work is the Reform Movement of 1898 or the year's work in the first month of that year is Jiayin.