The vernal equinox was also called "Japan-China", "Day and Night Equinox" and "Midspring Moon" in ancient times. "Li Mingshi Yi" said: "The dividing line, the turn of Huang Chi, the sun stops here, and the day and night are equally divided." Therefore, the significance of the vernal equinox, first, refers to the equal division of day and night, each of which is 12 hours; Second, in ancient times, it was spring from beginning of spring to long summer, and the vernal equinox happened to be in the three months of spring, and spring was equally divided.
The vernal equinox, one of the 24 solar terms, is the fourth solar term in spring. The solar calendar reaches 0, and festivals are held on March 19~22 of Gregorian calendar every year.
The vernal equinox is of great significance in astronomy, and the northern and southern hemispheres are equally divided day and night. After that, the direct position of the sun continued to move from the equator to the northern hemisphere, and the days in the northern hemisphere began to be longer than the nights. The vernal equinox also has obvious characteristics in climate. It's warm, rainy and sunny at this time.
Custom:
1, eat spring vegetables
Lingnan custom "eat spring vegetables at the vernal equinox". "Spring vegetable" is a kind of wild amaranth, which villagers call "Artemisia chun". On the vernal equinox, the whole village went to pick spring vegetables. When searching in the wild, it is often green and thin, about the length of a palm. Picked spring vegetables are usually boiled with fish fillets at home, which is called "spring soup". There is a jingle that says, "Spring soup is dirty, and it washes the liver and intestines. The whole family is safe and healthy. " Since the spring of the year, people still pray for peace and health at home.
2. Memorial Day
The Book of Rites includes: "Altar." Ying Da Shu by Confucius: "Also called vernal equinox".