The vernal equinox, also called vernal equinox, means

The vernal equinox, also known as the equinox, means to split spring in two, which means that spring is already halfway through.

1. Traditionally, beginning of spring is spring from long summer, and the vernal equinox is in the middle of three months in spring, so it was also called "vernal equinox", "day and night" and "mid-spring moon" in ancient times.

2. Simply put, it is the vernal equinox, which is as long as day and night, and the temperature is neither cold nor hot.

The vernal equinox is in the middle of three months in spring, and the spring is equally divided. After the vernal equinox, the climate is mild, rainy and sunny. During the vernal equinox, there are some folk customs in China, such as flying kites, eating spring vegetables and laying eggs.

The vernal equinox is of great significance in astronomy. On the day of the vernal equinox, the sun shines directly on the equator, and the northern and southern hemispheres are divided equally day and night. Since then, the direct position of the sun has continued to move from the equator to the northern hemisphere. In the northern hemisphere, the day begins to be longer than the night, while in the southern hemisphere, it is the opposite.

The spread of vernal equinox and solar terms:

1 and "Twenty-four solar terms" are the products of ancient farming civilization in China, which are related to the time when officials raised gossip and have a long history.

2. In the historical development, cultural exchange and communication, China's "20-40 solar terms", which reflected the return movement of the direct point of the sun, was circulated everywhere in the pre-Qin period.

3. The division of the four seasons in the west takes "dichotomy, dichotomy" as the beginning of the four seasons, 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.

4. 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.