Who invented the twenty-four solar terms

The twenty-four solar terms are the accumulated results of the long-term experience of the Han Chinese working people and the crystallization of wisdom. It is not the invention of a single person, but something summarized and generalized by people over a long period of time.

The twenty-four solar terms, which refer to the 24 specific festivals in the Chinese lunar calendar that represent the change of seasons, are based on the change of the Earth's position on the ecliptic (i.e., the Earth's orbit around the Sun), each corresponding to a certain position reached by the Earth for every 15° of movement on the ecliptic.

In ancient China, the use of earth sundial sundial, the longest annual sun shadow as "to" (also known as the day long to, long to, winter solstice), the shortest sun shadow for the "day short to" (also known as the short solstice, summer solstice).

One day in each of the spring and fall seasons, when the length of day and night is equal, is designated as the "spring equinox" and the "fall equinox".

During the Shang Dynasty, there were only four solar terms, but during the Zhou Dynasty there were eight, and during the Qin and Han dynasties, the 24 solar terms were fully established.

In 104 B.C.E., Deng Ping and others formulated the "Taichu Calendar," which formally set the 24 solar terms on the calendar and clarified the astronomical positions of the 24 solar terms.

Expanded Information:

CCTV News: the twenty-four seasons have a history of several thousand years now. About from the Xia Dynasty, China's working people have followed the twenty-four seasons to engage in production activities, so the lunar calendar is also known as the "summer calendar". To this day, our country has been following the law of the twenty-four seasons, the following is to introduce you to the origin of the twenty-four seasons in China.

China's twenty-four solar terms, with a full scientific basis, which represents the Earth in the orbit, twenty-four different positions. Because the earth around the sun needs 365 days, so every fifteen days, there is only a festival, and each festival, are expressed in the climate, the weather, the time, the "three weather" of the different changes.

The twenty-four solar terms were integrated into traditional Chinese culture, and the working people also summarized the solar terms that are easy to remember. For example, "four", that is, spring, summer, autumn and winter, indicating the beginning of each of the four seasons of the year, as well as "two points and two solstices", "three summer and two cold", "two dews and one frost", "two rains and two snows", and "startling, clearing, fullness, and mango", which contains people's scientific summarization of the changes of the four seasons as well as the conversion law, and is a valuable legacy left to the people by their ancestors. It is a valuable legacy left by our ancestors to the people.

Reference:

Central TV Network - Knowledge! Animation demonstration of the origin of China's "twenty-four solar terms", Baidu Encyclopedia - twenty-four solar terms