From which dynasty did the calendar of China begin to be calculated?

China's calendar is calculated from the reign of Xuanyuan Huangdi, the ancestor of China. At that time, there was no country, so it was not a dynasty, that is, the traditional lunar calendar.

There are many records about the lunar calendar in ancient books and Oracle Bone Inscriptions, and a large number of historical records record that the lunar calendar began in the era of the Yellow Emperor. It is generally believed that the calendar rule of the integration of yin and yang in the lunar calendar originated from the Shang Dynasty.

China is one of the earliest countries that invented the calendar in the world, and the appearance of the calendar has certain influence on the economic and cultural development of China. Lunar calendar, one of the traditional calendars in China, is also called lunar calendar, lunar calendar, ancient calendar, yellow calendar, summer calendar and old calendar. Lunar calendar is a combination of lunar calendar and lunar calendar. On the one hand, the moon moves around the earth as a "moon", and the average length of the moon is equal to "the first moon", which is the same as the lunar calendar, so it is also called "lunar calendar"; On the other hand, the "leap month" is set to make the average length of each year as close as possible to the tropic year, and the 24 solar terms are set to reflect the characteristics of seasonal changes. Therefore, the lunar calendar combines the characteristics of the lunar calendar, which is also called the "lunar calendar".

The lunar calendar is a traditional calendar in China, and it also has names such as lunar calendar, Chinese calendar, summer calendar, Han calendar and national calendar. However, the lunar calendar is not a lunar calendar, but a combination of yin and yang. Take the cycle of the moon phase as the length of the month and refer to the year of the return of the sun as the age. By setting 24 solar terms and leap months, the average calendar year can adapt to the tropic year.

The first calendar in China was about 4,000 years ago. According to a page of Oracle bone calendar in Oracle Bone Inscriptions, it is proved that the calendar of Yin Dynasty has reached a considerable level. This page of Oracle Bone Inscriptions is the oldest almanac of all mankind, and this page of Oracle Bone Inscriptions is also called the calendar.

References:

Baidu encyclopedia-lunar calendar