The Mid-Autumn Festival slowly evolved from the ancient worship of the moon. 中秋节由古代祭月慢慢演变而来。

The ancient calendar divided each season into three months, namely the moon, the middle month, and the quarter month.

古代历法把每个季节分为三个月,分别是孟月、仲月、季月。

 Lunar August happens to be the second month of autumn, so it is called "Mid-Autumn", and lunar August 15 is exactly half of autumn, so it is called "Mid-Autumn Festival". 

农历八月份正好是秋季的第二个月,所以被称为“仲秋”,而农历八月十五正好是秋季的一半,所以被称为“中秋”。

Originally, this day was set as a festival for the ancient emperors to worship the moon, and slowly evolved into the Mid-Autumn Festival.

最初这一天被定为古代帝王祭月的节日,慢慢就演变成为中秋节。