What does "Central Plains" mean?

Mid-Autumn Festival is one of the traditional festivals of the Han nationality. "Yuan" means beginning and beginning. The first month of the lunar calendar is the beginning of a year, so it is called January. In ancient times, Erjiazi was regarded as "Mid-Autumn Festival", that is, the 15th day of the seventh lunar month (commonly known as "July and a half" in southern China). This day is a day for Han people to sacrifice their deceased relatives and remember their ancestors, and it is also one of the important "eight festivals".

Zhongyuan, Shangyuan and Xia Yuan are collectively called "Sanyuan". Shangyuan Festival is the 15th day of the first month (Lantern Festival), Zhongyuan Festival is the 15th day of July (Zhongyuan Festival), and Xiayuan Festival is the 15th day of October. The Mid-Autumn Festival, together with Tomb-Sweeping Day and clan, is an important manifestation of ancestor worship. For two thousand years, ancestor worship has supported China to develop into a secular country and society, while most countries that worship gods in the world have evolved into religious societies.