Who is the founder of the 24 solar terms?

There is no clear record about the founder of the 24 solar terms in history, but there is such a figure in folklore. His name is Zhuan Xu, and his ancestor was once the first emperor Ji Mang under the Yellow Emperor.

After Zhuan Xu took office, through years of interviews with people, it was found that the original solar calendar still had many shortcomings and could not adapt to the development of social productive forces. So Zhuan Xu made use of the changes of heaven and earth and the laws of the sun, the moon and the stars to formulate a new calendar, taking spring as the beginning of the year, and dividing this year into 12 months and 12 festivals, and arranging different production activities according to each season.

brief introduction

Twenty-four solar terms are the product of ancient farming civilization, and are the knowledge system formed by ancient ancestors following the farming season and understanding the changing laws of seasons, climate and phenology in a year by observing the movement of celestial bodies. The twenty-four solar terms were originally formulated according to the changes of stars. The Big Dipper rotates once and bucket handle rotates once clockwise, which is called one of the "years" (Figure).

The current "twenty-four solar terms" are formulated according to the position of the sun on the ecliptic, that is, the sun's trajectory in one year is divided into 24 equal parts, each 15 is 1, and each 1 is a solar term.