When did 24 solar terms successfully apply for the World Heritage?

24 solar terms's successful application for World Heritage was on 2016165438+1October 30th.

2016165438+1October 30th, the Intergovernmental Committee for the Protection of Intangible Cultural Heritage of UNESCO adopted a resolution after deliberation, and listed the "24 solar terms" declared by China in the UNESCO representative list of intangible cultural heritage of mankind.

"Twenty-four solar terms" is a knowledge system and social practice formed by China people by observing the movement of the sun for a year and understanding the changing laws of the four seasons, climate and phenology in a year.

"Twenty-four solar terms" guide traditional agricultural production and daily life, and are an important part of China's traditional calendar system and related practical activities. In the field of international meteorology, this time cognition system is known as "the fifth invention of China".

Astronomical latitude in the twenty-four solar terms;

The conversion of natural solar terms is closely related to the astronomical "ecliptic angle". The intersection of the ecliptic and the equator is about 23 degrees 26 minutes north latitude, which is the northernmost boundary of direct sunlight on the earth. The Tropic of Cancer is a special latitude line with typical astronomical significance on the earth, which is of great significance to astronomy, geography, climate and biology.

China is located in the northern hemisphere, and the Tropic of Cancer runs through China. The latitude of the Tropic of Cancer is the angle of intersection of yellow and red, which determines the range of regression motion of the direct point of the sun, that is, the latitude of the Tropic of Cancer.

It also profoundly affects other natural geographical phenomena closely related to it, such as the changes of four seasons on the earth, the changes of five zones, pressure zones, wind zones, climate zones and natural zones. The arrangement of "Twenty-four solar terms" is closely related to China, a special astronomical latitude and climate type.