Traditional Culture Encyclopedia - The 24 Solar Terms - How many months were there in the Han Dynasty? 10 is a year? What month is the first month?
How many months were there in the Han Dynasty? 10 is a year? What month is the first month?
1. In the early years of the Western Han Dynasty, the Zhuan Xu calendar of the Qin Dynasty was followed. However, there are some mistakes in Zhuan Xu Calendar. BC 104 (the sixth year of Yuanfeng), at the suggestion of Sima Qian and others, Emperor Wu of the Han Dynasty ordered the calendar to be changed. In BC 104, astronomers such as Luo He made a calendar. Taichu calendar stipulates that a year is equal to 365.2502 days and January is equal to 29.5086 days. Change October as the beginning of the year to the first month of the year; Beginning to adopt twenty-four solar terms that are beneficial to agricultural time; Take the month without neutral gas as leap month to adjust the contradiction between the sun and the lunar calendar.
2. The Journey to the Beginning Calendar was used from May of the first year of the beginning to February of the second year of Emperor Hanyuan and Jiayin, *** 189, which is the first existing ancient calendar with relatively complete records in China. At the same time, it takes into account the laws of the apparent motion of the sun and the changes of the moon's profit and loss, and adopts the average value of the tropic year and the first month of the lunar calendar as the basic cycle, which belongs to the Yin-Yang calendar and inherits the scientificity and rationality of the ancient Chinese Yin-Yang calendar. The adoption of Xia Zheng-taking silver moon as the beginning of the year, keeping pace with the farming rhythm of spring planting, summer busy, autumn harvest and winter leisure, has brought great convenience to guide the production and life of agriculture and animal husbandry. Taichu calendar also takes the months without neutral atmosphere (even numbers in 24 solar terms, that is, winter solstice, severe cold, fright, vernal equinox, Qingming, Xiaoman, summer solstice, generals' mansion, hell, autumnal equinox and light snow at the beginning of frost) as leap months, which is more reasonable than the previous year-end leap method.
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