Some people thought that eating moon cakes and giving moon cakes as gifts have been related to the Mid-Autumn Festival since ancient times. In fact, it was not the case. In the early Tang Dynasty, only the first day of the eighth lunar month was a holiday, not the 15th day. It was said that later Emperor Xuanzong of Tang Dynasty traveled to the Moon Palace on the night of August 15, so the folk took this day as the Mid-Autumn Festival. By the middle of the Tang Dynasty, people began to climb the building to watch the moon at night on August 15, but there were no moon cakes at that time. The earliest appearance of moon cakes was in the Southern Song Dynasty. However, moon cakes at that time had nothing to do with the Mid-Autumn Festival, and they were very different from modern moon cakes. They just appeared as steamed food in the catering market.