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
Leap year the Revised Julian calendar. This rule gives an average year length of 365.242222 days. This is a very good approximation to the "mean" tropical year, but because the "vernal equinox" year is slightly longer, the Revised Julian calendar for the time being does not do as good a job as the Gregorian calendar at keeping the vernal equinox on or close to March 21. The Chinese calendar is lunisolar, so a leap year has an extra month, often called an "embolismic" month after the Greek word for it. In the Chinese calendar the leap month is added according to a