8. What's the date of15 in China?

In China, August 15th is the Mid-Autumn Festival.

Mid-Autumn Festival, also known as Moon Festival, Autumn Festival, Mid-Autumn Festival, August Festival, Moon Chasing Festival, Moon Appreciating Festival, Daughter's Day or Reunion Festival, is a popular traditional cultural festival in many ethnic groups and countries in the Chinese character cultural circle in China, and 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.

The Mid-Autumn Festival began in the early years of the Tang Dynasty and prevailed in the Song Dynasty. By the Ming and Qing Dynasties, it had become one of the major 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.

The Mid-Autumn Festival has customs such as offering sacrifices to the moon, enjoying the moon, eating moon cakes, enjoying osmanthus and drinking osmanthus wine. Since ancient times, and spread to this day, it lasts for a long time. The Mid-Autumn Festival is a colorful and precious cultural heritage. The full moon is a symbol of people's reunion, a sustenance for missing their hometown and relatives, and hopes for a bumper harvest and happiness.