What does the summer calendar mean? What does the summer calendar mean?

1. Origin of the summer calendar: Emperor Zhuan Xu and Xia Dynasty both used the summer calendar of Yin Jian, and took the first day of the first lunar month as New Year's Day, the so-called "Yin Jian Mengchun Moon". The Shang Dynasty used the lunar calendar to build ugliness, and the first day of the second lunar month was New Year's Day, which was called "ugly month in winter". The Qin dynasty used the Qin calendar, built the sea instead of the Zhuan Xu calendar, and took October of the current lunar calendar as the beginning of the year, the so-called "Meng Dong built the sea moon"; It is said that our ancestors used this calendar in all lunar calendars as early as the Xia Dynasty. So people also call it the summer calendar. After liberation, it was still called the summer calendar. After 1970, it was renamed as the "Lunar Calendar" in China. As for the origin of the name "lunar calendar", it is probably because the country has been founded on agriculture since ancient times, so the calendar must serve agriculture.

2. In ancient China, divination and astrology were very popular, and astrology played a very important role in imperial power. The calendar changed in every dynasty to meet the needs of imperial power, and the summer calendar was born under such circumstances. For thousands of years, with the change of dynasties, the integration of calendars has become our current lunar calendar.