Turn over the almanac or the almanac?

"Huangli" and "Huangli" are almanac used in ancient China, but they are not the same thing.

The "Yellow Calendar" is the Yellow Emperor Calendar. Archaeological findings show that China began to have a calendar more than 4,000 years ago, more than 3,000 years ago.

There was an almanac recorded by Oracle Bone Inscriptions before. There are six kinds of calendars used in ancient China: the emperor's calendar, the Zhuan Xu calendar, the summer calendar, the lunar calendar, the weekly calendar and the Lv calendar, the oldest of which is the "Yellow Calendar", which is said to have been founded by Emperor Xuanyuan. Just as the Tang Dynasty poet Lu said in the seal of Zhonghele, "Yan Tu lost his treasure and Huang Li was happy." In ancient China, the "Yellow Calendar" was widely used and had far-reaching influence, so people used to call it "Yellow Calendar". However, in the process of using the "yellow calendar", the people have added a lot of content to promote good fortune and bad luck, so the "yellow calendar" is superstitious.

"Imperial Calendar" belongs to the "official" almanac. The importance of almanac in social life is self-evident, and emperors of all dynasties attached great importance to the issuance of calendars. Since the Tang Dynasty, successive dynasties began to strictly manage calendars. In the ninth year of Daiwa in Tang Wenzong (835), the King of Tang ordered the compilation of the first block-printed almanac "Xuan Ming Calendar". The sun, moon, time and festivals are recorded in detail in the Xuan Ming calendar. At that time, in order to prevent people from printing almanac indiscriminately, Tang Wenzong ordered that almanac must be examined and approved by the emperor himself and formally printed. Since then, the almanac has been called the "imperial calendar".

About the origin of the word "Imperial Calendar", some people say that it has something to do with Song Taizong. Said that whenever the end of the year, Song Taizong will send an almanac to civil and military officials and members of the royal family. This almanac is engraved with the dates and festivals of the lunar calendar, as well as the common sense of agriculture and planting. Because the almanac was given by the emperor, it is called "imperial almanac". It is certainly a great honor to get the almanac presented by the emperor, which many people expect. Influenced by it, the people gradually called the almanac "the imperial calendar".

The calendar recorded in the Imperial Calendar is generally limited to one year, and it changes in the second year. It would be wrong to look at this year's calendar with last year's "imperial calendar". So people often use the "old imperial calendar" to describe those conservative and outdated ideologies.

"Huang Li" and "Huang Li" are both ancient almanac, with the same pronunciation, so when people mention them, they are often confused. We'd better distinguish them.