Today, Monday February 8th is the beginning of the new year in the Chinese calendar. The festivities usually start the day before the new year and continue until the Lantern Festival, the 15th day of the new year. Billions celebrate according to a lunisolar calendar, which is based off of astronomical phenomena. This calendar determines the dates of holidays and helps Chinese people in selecting the luckiest days for weddings, funerals, moving, starting a business and other big changes in life. Learn more about this fascinating holiday that isn't just celebrated by the Chinese people, but by the Vietnamese (which they call "Tet"), Thai, Filipino, Koreans, Indonesians and many more around the world.