The origin of the Spring Festival is 120.

The Spring Festival, the Lunar New Year, is a traditional folk festival in China, and it is also the most important festival. The Spring Festival has a long history, and it is generally believed that it originated from the activities of offering sacrifices to gods and ancestors in the late Yin and Shang Dynasties. During Yu Shun's reign, Shun ascended the throne and proclaimed himself emperor. On the first day of the first lunar month, he led his men to worship the god of heaven and earth. Since then, people have regarded this day as the beginning of a year. This is the origin of the Lunar New Year.

The original intention of the two concepts of Spring Festival and New Year comes from agriculture. In ancient times, people called the growth cycle of the valley "year", and Shuowen supplemented it with "year, the valley is ripe". During the Xia and Shang Dynasties, the Xia calendar came into being, with the full and short moon as the month, and a year was divided into twelve months. Every month, the day when the moon can't be seen is the new moon, and the first day of the first month is called the beginning of a year, also known as the year. The title of the year began in the Zhou Dynasty and was officially set in the Western Han Dynasty, which continues to this day.