When did the first day of the first month begin?

China first called the first day of the first lunar month "New Year's Day". Meta means "early" and "beginning" and refers to "day". Together, New Year's Day is the first day of the year. The date of the first day of the first month was also very different before Emperor Wu of the Han Dynasty.

Therefore, the New Year's Day of the past dynasties is not consistent. Meng Xiyue (1 month) is the first month of the Xia calendar, the twelfth month of the Shang lunar calendar (1February) and the winter month of the week calendar (1 1 month). After Qin Shihuang unified China, Yangchun month (October) was the first month, that is, the first day of October was New Year's Day.

New Year's Day originated around 50,000 BC. The ancient Egyptians have changed from nomadism to farming and settled on both sides of the Nile. Their agricultural harvest is closely related to whether there is a flood in the Nile. The ancient Egyptians found that the time of Nile flooding was regular from long-term observation, so they recorded this time on bamboo poles every time, and learned that the interval between two flooding times was about 365 days.

At the same time, it was found that when the Nile came near Cairo at high tide today, the sun and Sirius rose from the horizon at the same time. Therefore, the ancient Egyptians set this day as the beginning of the year. This is the earliest origin of New Year's Day.

In A.D. 19 1 1, the Revolution of 1911 led by Sun Yat-sen overthrew the rule of the Qing Dynasty and established the Republic of China. In order to "follow the agricultural season, so follow the western calendar, so do statistics", the first year of the Republic of China decided to use the Gregorian calendar (actually used as 19 12), and stipulated that Gregorian calendar 1 was called "New Year's Day", but not "New Year's Day".

Today's "New Year's Day" is the first plenary session of China People's Political Consultative Conference on September 27th. 1949. When it was decided to establish the People's Republic of China (PRC) (PRC), it was also decided to adopt the universal calendar, and the Gregorian calendar 1 was officially designated as "New Year's Day" and the first day of the first lunar month was changed to "Spring Festival".