The origin of vernal equinox solar terms
The vernal equinox is a festival and a ceremony. The ancient emperors had a system of offering sacrifices to the sun in spring and the moon in autumn. The ritual of the Zhou Dynasty was to offer sacrifices on the altar. Book of Rites: "Altar." Ying Da Shu by Confucius: "Also called vernal equinox". Pan Qingrong won Ji Sheng at the age of Emperor Jing: "The vernal equinox and autumn are a grand ceremony of the country, and scholars should not worship it."
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.
Solar term circulation
"Twenty-four solar terms" is the product of China's ancient farming civilization, which has a long history and is related to the time when officials raised gossip. In the process of cultural exchange and communication of historical development, four solar terms (vernal equinox, autumnal equinox, summer solstice, winter solstice) of China's "twenty-four solar terms" reflecting the return movement of the direct point of the sun spread throughout the pre-Qin period.
The division of the four seasons in the west is based on the dichotomy, that is, spring is divided into beginning of spring. The vernal equinox in the "vernal equinox" became the New Year in Uzbekistan, Turkey, Afghanistan, Iran and other countries, which lasted for more than 3,000 years. Twenty-four solar terms were introduced to Japan more than 1000 years ago, and some solar terms were also included in Japan's statutory wishes (festivals). Vernal equinox is a public holiday in contemporary Japan.
The above contents refer to Baidu Encyclopedia-Vernal Equinox.