Research On The 24th Solar Terms In Han Dynasty

The time series system is of great significance to the operation and development of society.Twenty-four solar terms,as one of the important time series systems in Chinese history,had an important influence on the politics,economy and culture of ancient China.Twenty-four solar terms sprouted in the Shang and Zhou Dynasties,formed around the time of the Warring States Period,and its stereotypes and wide application occurred in the Han Dynasty.The Han Dynasty inherited the great unified political system of the Qin Dynasty,and laid the foundation for the ancient Chinese tradition in terms of agriculture,astronomical calendar and cultural thought.The twenty-four solar terms in the history of the Han dynasty highlight the process of the formation and maturity of the twenty-four solar terms and their impact on all aspects of society.The first is in thinking.Twenty-four solar terms are closely related to the changes of yin,yang,and qi.They are widely used in thinking about the operation of nature and the principles of human behavior based on this.The tracing of calendar legends by the people in the Han Dynasty traced the birth of the 24 solar terms to the creation of Fuxi and Huangdi era.In their narrative,the twenty-four solar terms are produced to confirm the changes of yin and yang harmony throughout the year.Therefore,in the selection process of the names of the twenty-four seasons,apart from the division of the seasons,more emphasis is placed on the description of climatic phenomena,reflecting the change of cold temperature and rainfall in one stage,which has a wider application range and a larger time span.At the same time,due to the creation of the hexagram theory in the Han dynasty to explain the operation of yin and yang in the world,the twenty-four solar terms were also introduced into the system of hexagram qi to explain the operation of one-year qi,and to pass a certain sundial standard,or phenological phenomenon within the time sequence.To judge good things and bad things.Secondly in terms of astronomical calendar.The?Huainanzi Tianwen?,written in the early period of Emperor Wudi of the Han Dynasty,as the time-of-day role of the"twenty-four times" in the early twenty-four solar terms,through the combination of astronomical elements such as Big Dipper,"Shierchen","Siwei",etc.became part of the grand universe view and world view outlined in "Huainanzi".Similarly,its combination with the twelve temperament has also promoted the birth of the temperament and calendar system.After that,the Han Dynasty almanacs mainly recorded the methods and standards for estimating the twenty-four solar terms.In the"Taichu" calendar,the twenty-four solar terms and the day,month,obscurity,new moon,string,hope,and eigt verses became important contents in the calendar.The"Santong" calendar and "Sifen" calendar inherited the function of the 24 solar terms in the "Taichu" calendar.Among them,the presumption of the 24 solar terms was more scientific and strict,and the standards were extended to sundial,solitude,day and night,ecliptic depolarization,faint Medium magnitude.The Han dynasty also formed the standard of the month without "Zhongqi" as a leap month,which played an important role in setting leap.Finally,in terms of climate and agricultural seasonality.The changes in the order of "Jing Zhe" and Yushui","Gu Yu" and "Qing Ming" in the Han dynasty spring festival reflect the changes of the Han Dynasty climate.As a time series standard to guide agriculture,solar energy is adapted to climate change to adjust the order of solar terms,in order to serve agricultural production and life more accurately.The agricultural time of the Han Dynasty,based on the past,was mainly based on the phenology and the eight festivals.At the same time,for the agricultural life,the twenty-four solar terms provided a broader time series standard for agricultural life.In the Han Dynasty,the twenty-four solar terms are a concept of time and energy,a time series system,reflecting the ancient people's thinking about the operation of heaven and earth and the alternation of four times.Its application in calendar,calamity,agriculture,etc.laid a foundation for the development of twenty-four solar terms in later generations and made preliminary attempts.