Which invention is known as China's "fifth greatest invention" in the world?

Known as? China's fifth greatest invention? Is it China's? Twenty-four solar terms of the lunar calendar? . The twenty-four solar terms of the lunar calendar are the result of the combination of wisdom and sweat of the ancient working people in China, which not only has a long history, but also plays a huge role in modern life. In ancient times, the 24 solar terms were an important symbol of farmers' farming and life. People's work and life in a year are planned according to the 24 solar terms of the lunar calendar. What happened afterwards? Twenty-four solar terms of the lunar calendar? Has it been officially included? United nations non-legacy list? Also known as? China's fifth greatest invention? . China's compass, papermaking, printing and gunpowder have always been called? China's four great inventions? Then China appeared again? The fifth greatest invention? , that is? Twenty-four solar terms of the lunar calendar? . At first, Twenty-four solar terms of the lunar calendar? The date is determined according to the bucket handle rotation of the Big Dipper. Later, due to continuous research and improvement, the 24 solar terms have a fixed lunar date. ? Twenty-four solar terms of the lunar calendar? Refers to the vernal equinox, autumnal equinox, summer solstice, winter solstice, beginning of spring, beginning of winter, Changchun, beginning of autumn and other 24 solar terms. These 24 solar terms are also important indicators for China people to judge seasons and weather.

Twenty-four solar terms of the lunar calendar? It appeared in ancient times and was also the research product of people during the farming period. Because farming is closely related to the laws of nature, people must make more accurate and regular judgments in order to cultivate better. In the accumulated life experience, they invented the twenty-four solar terms, and judged the seasons according to the twenty-four solar terms, chose farming time, and made farming plans. It can be said that the 24 solar terms played an irreplaceable role in the lives of ancient farmers. Nowadays, with the development of modern science and technology, it is not necessary for farmers to cultivate according to the 24 solar terms, but the 24 solar terms are still an important part of modern life.