What is the origin of the name "Mid-Autumn Festival"?

According to China's calendar, August in the lunar calendar is in the middle of autumn, that is, the second month of autumn, which is called "Mid-Autumn Festival", and August 15th is among them, so it is called "Mid-Autumn Festival".

1. Mid-Autumn Festival, also known as Mid-Autumn Festival, Mid-Autumn Festival, August Festival, Moon Chasing Festival, Moon Appreciating Festival, Daughter's Day or Reunion Festival, is a traditional cultural festival popular in many ethnic groups and countries in the Chinese character cultural circle in China. It falls on the 15th day of the eighth lunar month. Because its value is only half that of Sanqiu, it is named, and some places set the Mid-Autumn Festival on August 16.

Mid-Autumn Festival began in the early Tang Dynasty and prevailed in the Song Dynasty. By the Ming and Qing Dynasties, it had become one of the traditional festivals in China, which was as famous as the Spring Festival. Influenced by China culture, Mid-Autumn Festival is also a traditional festival for overseas Chinese in some countries in East and Southeast Asia, especially local Chinese. Since 2008, Mid-Autumn Festival has been listed as a national statutory holiday. On May 20th, 2006, it was listed in the first batch of national intangible cultural heritage by the State Council.