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 reign. His Taichu Calendar () defined a solar year as days, and the lunar month was days. This calendar introduced the 24 solar terms, dividing the year into 24 equal parts. Solar terms were paired, with the 12 combined periods known as climate terms. The Taichu calendar established a framework for traditional calendars, with later calendars adding to the basic formula. The Dàmíng Calendar (), created in the Liang dynasty by Zhu Chongzhi, introduced the equinoxes. The use of a syzygy to determine the lunar month was first described in the Tang dynasty Wùyín Yuán Calendar (). The Yuan dynasty