Snakes in Chinese mythology of the Han dynasty, which claimed to rule with the protection of water and the north. Although the Black Warrior (Xuan Wu) is generally depicted as a snake entwining around a turtle, sometimes they are viewed as two separable generals. In Chinese culture mythologized snakes and snakelike beings have various roles, including the calendar system, poetry, and literature. In Chinese culture, years of the Snake are sixth in the cycle, following the Dragon Years, and recur every twelfth year. The Chinese New Year does not fall on a specific date, so it is essential to check the calendar to find
Chinese calendar introduced under the Zhou dynasty. This calendar set the beginning of the year at the day of the new moon before the winter solstice. It also set the "shàngyuán" as the winter solstice of a "dīngsì" year, making the year it was introduced around 2,758,130. Several competing lunisolar calendars were also introduced, especially by states fighting Zhou control during the Warring States period. The state of Lu issued its own Lu calendar(). Jin issued the Xia calendar () in 102 AD, with a year beginning on the day of the new moon nearest the March equinox. Qin issued the Zhuanxu