The ancient name of summer.

The ancients called summer midsummer and three summers.

1, midsummer: midsummer refers to the high temperature period in summer, that is, a period after the summer solstice. Summer solstice is the longest day and the shortest night in the solar calendar, which usually occurs on June 2 1 or 22. Since the summer solstice, the sun has gradually moved westward, the days have gradually shortened, and the temperature has gradually increased, entering the midsummer stage. In midsummer, the weather is hot and the temperature is high, which is the hottest period of the year. In ancient China, people usually called this period midsummer, which was also the busiest time for agricultural activities in summer.

2. Three summers: Three summers refer to the first, middle and last stages of summer. In ancient China, a year was divided into four seasons: spring, summer, autumn and winter. Summer refers to the period from the long summer to the beginning of autumn, which usually occurs between May 5 or 6 and August 7 or 8 in the solar calendar. Specifically, these three summers are the early summer around the long summer, the mid-summer around the day before, and the late summer around beginning of autumn.

Ancient people's observation of climate and natural changes

In early summer, the weather is getting hotter and hotter, and the cultivation is mainly based on transplanting rice seedlings; In midsummer, the temperature is the highest and crops grow rapidly; At the end of summer, the temperature gradually dropped and the crops gradually matured. Ancient farmers usually arranged their farming activities reasonably according to the climatic characteristics of different stages in order to obtain a bumper harvest.

In ancient times, the name of summer reflected people's observation and understanding of climate and natural changes, and also reflected the production and life rhythm of agricultural society in summer. With the changes of the times, people may call summer different, but the cognition and experience of high temperature and busy farming in summer still run through history and culture. Nowadays, although the mode of production and the pace of life in modern society have changed greatly, the characteristics of high temperature and busy farming in summer are still people's experience and cognition.