The origin, customs and activities of people on the solar term.

The origin of the great summer heat is the result of long-term observation, exploration and summary of astronomy, meteorology and climate by working people in China. In the hot summer, China people have the custom of drinking tea, drying ginger, burning incense and drinking mutton soup.

Every year from July 22nd to 24th, when the longitude 120 is reached, it is the solar term of "Great Summer". Great summer heat is a season that reflects the degree of heat in summer. "Twenty-four solar terms": "In mid-June, the summer heat is also hot, so the summer heat is divided into different sizes, and it is small at the beginning of the month, and it is still hot today." In other words, summer heat is heat, which is divided into mild summer heat and severe summer heat, especially severe summer heat.

Local customs: in southern Shandong, there is a custom of "drinking summer sheep" (drinking mutton soup) on the day of summer heat; The custom of sending a "summer boat" in Zhejiang; People in Putian, Fujian have the custom of eating litchi, mutton and rice grains, which is called "excessive heat"; Many places in Guangdong have the custom of "eating fairy grass"; Taiwan Province Province has the custom of eating pineapple; In some areas, people have the custom of fighting crickets after meals.