The original site of the Mongolian Yangzhai School of Arithmetic is Changchunyuan.
In the 52nd year of Kangxi's reign (1713), a school of mathematics was set up in the Mengyangzhai of Changchunyuan. Minister Jian's officials were skilled in mathematics. They specially appointed the prince and prince Dong Zhi to select the children of the Eight Banners Family to learn algorithms. In the 12th year of Yongzheng's reign (1734), 16 people were added to the Eight Banners Official School to teach arithmetic to official students.
In the 51st year of Kangxi (1712 Renchen), the Emperor of Kangxi appointed Mei Fucheng as the assembler of Mengyangzhai, and compiled the astronomical algorithm book together with Chen Houyao, He Guozong, Mingantu, Yang Daosheng, etc. In the 52nd year of Kangxi's reign (Guisi, 1713), Kangxi issued an imperial edict and set up a "School of Arithmetic" in Mengyangzhai to translate western calendar works and compile books such as The Origin of the Legal Calendar, which was also called the "Royal Academy of Sciences" by Westerners.
The term "Mongolian Yangzhai" now refers to the "Mongolian Yangzhai School of Arithmetic", which was the then "Chinese Academy of Sciences" founded by Kangxi to advocate modern science. This is why we became famous and remembered by later generations.