Legend has it that in the heyday of ancient Yao and Shun, when Emperor Yao was in power, he worked diligently for the people and did many good things for the people, which was deeply loved by the people. However, due to his son's incompetence, he did not pass on the throne of "emperor" to his son, but passed it on to Shun, who has both ability and political integrity.

Yao said to Shun, "You must pass on the throne in the future, and you will be relieved when I die." Later, Shun passed the throne to Yu, who made great contributions to flood control. Yu also loves the people and has done many good things for the people like Shun, and is deeply loved by the people.

Later, after Yao's death, people took the day of offering sacrifices to heaven and earth and the first emperor Yao as the beginning of the year, and called the first day of the first month "New Year's Day" or "Jacky", which was the ancient New Year's Day.

On New Year's Day, emperors of all dynasties held ceremonies to celebrate, offer sacrifices and pray for blessings, such as offering sacrifices to gods and ancestors, writing couplets on doors, writing blessings and dancing dragon lanterns. People have gradually formed entertainment celebrations such as offering sacrifices to Buddha, ancestor worship, posting couplets, setting off firecrackers, celebrating the New Year, having a family reunion dinner and numerous "social fires".