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". Hebe: "in the year, the grain 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. However, in ancient times, the first day of the first month was called "New Year's Day". Until the victory of the Revolution of 1911 in modern China, in order to conform to the farming season and facilitate statistics, the Nanjing Provisional Government stipulated that the people should use the summer calendar, and the institutions, factories, mines, schools and organizations should adopt the solar calendar, with the Gregorian calendar 1 month 1 day as New Year's Day and the first month of the lunar calendar 1 day as the Spring Festival. 1949 On September 27th, New China was founded. At the first plenary session of the China People's Political Consultative Conference, the international use of the Gregorian calendar era was adopted, and the Gregorian calendar 1 month 1 day was designated as New Year's Day, commonly known as the Gregorian calendar year. The first day of the first lunar month is usually around beginning of spring, so the first day of the first lunar month is designated as the Spring Festival, commonly known as the Lunar New Year. In the traditional sense, the Spring Festival refers to the La Worship sacrificial ceremony from the eighth day of the twelfth lunar month or the 23rd day of the twelfth lunar month to the 15th day of the first lunar month, with New Year's Eve and the first day of the first lunar month as the climax. During the Spring Festival, a traditional festival, the Han nationality and most ethnic minorities in China will hold various celebrations. Most of these activities are mainly about offering sacrifices to gods and buddhas, paying homage to ancestors, saying goodbye to the old and welcoming the new, and praying for the new. The forms of activities are rich and colorful, with strong national characteristics.