Jia Jialiang made eleven guesses about a zodiac.

In addition to calculating calendars and observing astronomical phenomena, China's official astronomical institutions were also responsible for the selection. For example, in the Eastern Han Dynasty, the duties of Tianguan included: "When performing sacrifices, funerals and marriages in any country, the taboos of good times and festivals should be broadcast in time." Later, in the official astronomical institutions, there appeared a department responsible for such things. In the early Qing dynasty, the responsibility of this department was: "to check the construction of palaces inside and outside, mountains and mountains, feng shui, promote weddings, choose auspicious days, and pave the way for a unique start." From the Yuan Dynasty to the end of the Qing Dynasty, the government established a wide range of Yin and Yang studies in prefectures and counties, just like Confucianism and medicine. [7] After the Tang Dynasty, with the maturity of block printing technology, the government began to print calendar days (that is, yellow calendars). On the basis of these engraved almanac, the content about business taboos began to appear in large numbers! [7] China's metaphysics is closely related to the 24 solar terms, so "beginning of spring" has long been regarded as the beginning of a new year in the fields of science and mathematics. As for the first day of the first month, it is only the first day of 12 lunar months. Although every household is celebrating, the calculation of geomantic figures in the new year is still based on "beginning of spring". [8] China's traditional divination and divination started from beginning of spring. [3] According to the old almanac of the Republic of China dug up by Fuzhou folklore researcher Zheng Ziduan, folklore still takes beginning of spring as the starting point of the Year of the Zodiac. According to research, the Spring Festival became the official name after the Revolution of 1911. Before that, people and officials regarded beginning of spring as the first year. [9] Liu, honorary president of the Chinese Folklore Society, believes that "according to the inherent traditional concept, beginning of spring is the boundary of the wheel". "Since the establishment of the zodiac, we have started to use beginning of spring as the calculation start time of the rotation of the zodiac." 【 10 】 China calendar and folklore all use "beginning of spring" as the basis for calculating the zodiac. Ye Chunsheng, a professor at Sun Yat-sen University and vice chairman of the Chinese Folklore Society, believes that the word "Zodiac" existed as early as the Spring and Autumn Period, when the corresponding relationship between the twelve earthly branches and the zodiac was established and circulated [1 1]. Many folk customs all over the country regard beginning of spring as the starting point of the Year of the Zodiac. For the Year of the Animal, the custom of "wearing red rope and red underwear" began at midnight on New Year's Eve, which is only a custom in a few areas. In the Year of the Animal, officials offer sacrifices to Spring God, Spring Cattle, Mang God and Tai Sui at the annual beginning of spring ceremony. To sum up, from the official to the folk, and then to the academic circles, most of them support the saying that the zodiac began in the beginning of spring. Tracing back to the source, it is more orthodox to start from beginning of spring as a year of the zodiac.