The summer solstice is one of the "four seasons and eight festivals". Since ancient times, people have the custom of celebrating the harvest and offering sacrifices to their ancestors at this time in order to pray for a prosperous year. In the ancient farming society, when people lived and worked in peace and contentment, they chose a day to worship the gods and ancestors, and they had various regular festivals. The rich offerings to worship the gods and ancestors developed festival feasts, and gradually formed some established ways of celebration, that is, the so-called festival folklore.
Basic information
The summer solstice is the first 10 of the 24 solar terms. Fight refers to noon; The yellow meridian of the sun is 90; On June 2 1~22 of Gregorian calendar. On the day of the summer solstice, the position where the sun shines directly on the ground reaches the northernmost point of the year, almost directly on the Tropic of Cancer. At this time, the daylight time in all parts of the northern hemisphere reaches the longest in the whole year. For the Tropic of Cancer and its northern area, the summer solstice is also the highest day of the year at noon.
The summer solstice is the turning point of the sun's northward travel. After the summer solstice, the direct point of the sun began to move south from the Tropic of Cancer, and the days in the northern hemisphere began to shorten gradually. For China, which is located in the north of the Tropic of Cancer, after the summer solstice, the height of the noon sun began to decrease day by day; For China, which is located in the south of the Tropic of Cancer, the height of the noon sun returns to the south after the summer solstice, and it begins to decrease day by day after the sun shines again.