Twenty-four solar terms of Emperor Wu of Han Dynasty

Beginning of spring → Rain → Stinking → Equinox → Qingming → Grain Rain.

It is said that the traditional twenty-four solar terms were established from the Yellow Emperor period and originated from astrology and the traditional five-element principle. From the Zhou Dynasty to the early Han Dynasty, "Jing Zhe" was called "Qi Zhe", which appeared before "Yu". Namely: beginning of spring → qi stagnation → rain → vernal equinox → Grain Rain → Qingming.

Then change the calendar! The Zhuan Xu calendar I used before is too old-fashioned, and I'm going to change it to taichu calendar, so I'll change the 24 solar terms together! There is an excuse. The name of the old man in Emperor Jing of Han Dynasty is "Liu Qi", which is the "Qi" of the "Qi". How can we make everyone "angry" to "angry" every day? You must avoid it! So he ordered his Confucian scholars to use their brains.

Tai Chu ge Li

Emperor Wu of the Han Dynasty was the first emperor to formulate and promulgate the taichu calendar Law in a unified way throughout the country, and it was used from the first month of each year. Before the early Han Dynasty, China mainly adopted the "Zhuan Xu Calendar" in the "Ancient Six Calendars" (Huangdi, Zhuan Xu, Xia, Yin, Zhou and Lu).

In the first year of Taichu (BC 104), taichu calendar was changed, with the first month as the beginning of the year, and the color was still yellow. The formulation of taichu calendar Law is an important calendar reform in the history of China and an immortal contribution of Chinese civilization to world astronomy.