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Chinese zodiac

Lunar calendar classification in a 12-year cycle

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Through China, East Asia and Central Asia

Identifying this scheme as a "zodiac" reflects superficial similarities to the Western zodiac: both divide time cycles into twelve parts, label the majority of those parts with animals, and are used to ascribe a person's personality or events in their life to the person's particular relationship to the cycle. The 12 Chinese zodiac animals in the cycle are not only used to represent years in China but are also believed to influence people's personalities, careers, compatibility, marriages, and fortunes.

For the starting date of a zodiac year, there are two schools of thought in Chinese astrology: Chinese New Year or the start of spring.

History

Some scholars suggest the twelve animals were chosen for their symbolic traits, based on their revered status in traditional Chinese culture. The choice varied regionally before being standardized in the Han Dynasty, when the Chinese zodiac, as an essential part of Chinese culture, started to take shape. This era formalizes a twelve-year cycle, where each year is associated with a specific animal, as part of a timekeeping system. This system, known as the zodiac cycle, combined the twelve Earthly Branches (地支) with the ten Heavenly Stems (天干) to create a 60-year cycle, a cyclical timekeeping system seen as embodying both personality traits and the broader society. Each Earthly Branch was linked to one of the twelve zodiac signs and to an animal: Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig.

According to legend, the Jade Emperor held a contest to decide which animals would be lucky enough to be included in the calendar. The winner of the race – the rat – received the first year of the 12-year cycle, and so on.

However, historical research suggests that the Chinese zodiac emerged after the establishment of the "Ganzhi or Sexagenary cycle", with each of the twelve animals directly assigned to one of the twelve Earthly Branches. In this system, a person's birth year determines their associated animal, which is linked to a specific Earthly Branch and serves both a chronological function and a means of categorizing individuals into symbolic groups, akin to a genus.

In the Eastern Han dynasty, Xu Shen said that the character si (巳) was the image of a snake, and the same was true for hai (亥) and shi (豕; 'pig'). Since the twelve Earthly Branches of the zodiac were easily confused, people replaced them with animals and borrowed the ordinal symbols to match them with the Earthly Branches to form a chronological symbol system.

In "Totem and celestial combination theory", it is suggested that the zodiac is ancient animal totem worship combined with astronomical images in astronomy.

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