The monthly branch is a month's earthly branch expressed by the chronological method of the main branch.
Yue Ji, the main branch, developed from the twelfth lunar month. According to the five elements of righteousness, make a scene "take the five elements of love and build it by fighting the machine." Party A and Party B call it dry when naming the day, ugly when naming the month, and branch. There is something in the sky that uses the sky, and there is something in the ground that uses the moon. Yin and Yang are different, so there are branches and branches. " So we can know that at the beginning of the invention, stems and branches were used to record the sun and branches were used to record the moon.
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The Japanese branch is a chronology of the main branch to represent the earthly branch of the day, such as Jiazi Day, and the Japanese branch is "Zi".
The 60th day of a year is roughly a cycle of 2 months; Reuse after a cycle, cycle after cycle, cycle. According to the confirmed literature, the date of the year of trunk and branch began in February of the third year of the Luyin Gregorian calendar ("there is food every day", which was converted to February 22, 720 BC in the fifty-first year of Zhou Pingwang).
Extended data
Heavenly stems and earthly branches application areas:
In ancient China, heavenly stems and earthly branches was mainly used to mark days, but also to mark months, years and hours. The twelve-year calendar was adopted in the Spring and Autumn Period and the Warring States Period, and the twelve-year calendar system was adopted in the Western Han Dynasty at the latest. At the end of the Western Han Dynasty, the official branch was used to record the years and months. After the Tang Dynasty, the names of the calendars of the Five Dynasties began to be marked with branches, and in the Northern Song Dynasty, the dates of the ten branches and twelve branches were combined with the calendar. So far, all the dates have been marked with dry branches. This is the official calendar (Jiazi calendar), which is a kind of solar calendar.
In addition, the way of timing the trunk and branch started at least from the lunar calendar, and was added to the yin and yang calendars formulated by various dynasties so far, and the two calendars were used at the same time. The marking time of trunks and branches has been used in ancient China without interruption. Therefore, it is very helpful to learn history and it is easy to calculate historical time. Such as "Feng Wanzhen": "Xianfeng Gengshen, British and French Coalition forces invaded the White Sea." Xianfeng, the year of the emperor; Geng Shen, the year of dry support.
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