Legend has it that Li Yuan, the emperor of the Tang Dynasty, celebrated the Mid-Autumn Festival with all the civil and military officials. He looked at the round "Hu cakes" sent by Tibet with great interest, pointed at the bright moon in the sky and said that he would invite the bright moon with round cakes.

Later, the custom of eating mooncakes during the Mid-Autumn Festival spread.

Moon cakes were not called moon cakes at first, but Hu cakes. They were made with walnut kernels and sesame seeds. When Emperor Taizong of the Tang Dynasty was eating Hu cakes, he felt that the name Hu cakes was not nice, and that day happened to be August 15th.

On the Mid-Autumn Festival, I looked up at the moon and said that since the moon was so round, I would call this kind of cake moon cake.

Moon cakes were originally offered as offerings to the moon. Later, people gradually combined moon viewing with tasting moon cakes during the Mid-Autumn Festival, giving and eating moon cakes to symbolize the reunion of man and moon.