What does Yaoli mean?

The origin of China calendar is very long. According to ancient historical records, the earliest calendar in China is called the "Yellow Calendar", which is said to have been formulated during the period of the Yellow Emperor. The initial formulation process and specific content of Gregorian calendar are unknown. Fortunately Sima Qian (formerly known as 145-? In Historical Records, the revision process of Yao Li was recorded in detail, which gave many inspirations to future generations. In the history of our country, the calendar used during the period of the Five Emperors.