It is said that eating moon cakes in the Mid-Autumn Festival began in the Yuan Dynasty. At that time, the broad masses of people in the Central Plains did not want to endure the cruel rule of the ruling class in the Yuan Dynasty and rose up against the Yuan Dynasty. Zhu Yuanzhang joined forces with various resistance forces to prepare for the uprising.

However, the officers and men of the imperial court searched very closely and it was very difficult to pass on the news. Liu Bowen, a military adviser, came up with a plan and ordered his men to hide the note with the words "Uprising on the 15th of August" in the cake, and then sent people to the uprising troops in different places to inform them to respond to the uprising on the 15th of August.

Extended data:

Moon cakes are offerings to worship the moon god in ancient Mid-Autumn Festival, and they are also seasonal food for Mid-Autumn Festival. Moon cakes are round and shared by the whole family, symbolizing reunion and harmony. In ancient times, the moon was sacrificed every Mid-Autumn Festival night. Set up a big incense table and place sacrifices such as moon cakes and fruits. Under the moon, put the moon statue in the direction of the moon, and the red candle burns high. The whole family takes turns in Yue Bai, and then the housewife cuts the reunion moon cakes.

As an offering to worship the moon god, moon cakes have a long history. The word "moon cake" was first seen in Liang Lumeng by Wu in the Southern Song Dynasty. Up to now, enjoying the moon and eating moon cakes is an indispensable custom of Mid-Autumn Festival in all parts of China. As the saying goes, "Moon cakes are sweet and fragrant when they are full on August 15th".

Baidu encyclopedia-moon cake