Every year in April of the lunar calendar, around May 6 of the Gregorian calendar, when the sun reaches 45 degrees of the yellow meridian, it begins. Folk customs regard it as the beginning of summer. At this time, the climate in most parts of China is warm and the crops grow vigorously, so the cotton and other crops are managed by intertillage. Agricultural proverb: "Three dynasties and long summers hoe the ground everywhere." And get a year's wealth by setting a sunny summer day. There is an agricultural proverb, "It doesn't rain in the long summer, and the plows and rakes hang high". Old customs make summer a traditional folk festival, called "Long Summer Festival".

The word "summer" in "long summer" means "big", which means that the plants sown in spring have grown upright. In ancient times, people attached great importance to the customs and habits of long summer. On the long summer day, the ancient emperor would lead officials to the southern suburbs of Beijing to welcome the summer and hold a ceremony to welcome the summer. The monarch and his subjects all wear red ceremonial costumes and red jade ornaments, and even horses and car flags should be red to express their desire and good wishes for a bumper harvest. So, what is the origin of the long summer?

On the long summer day, the ancient emperor would lead officials to the southern suburbs of Beijing to welcome the summer and hold a ceremony to welcome the summer. The monarch and his subjects all wear red ceremonial costumes and red jade ornaments, and even horses and car flags should be red to express their desire and good wishes for a bumper harvest. In the summer ceremony, the court "opened the ice in summer and gave it to Wen Wuda." Ice was stored last winter, and the emperor gave Guan Bai historical allusions about long summer and long summer.

In Jiangsu and Zhejiang, people are sad and cherish spring because of the bright spring, so they prepare wine and vegetables for fun, as if they were giving people away, and call it Hunchun. Cui said in Fu: "The beginning of welcoming summer is the end of spring." Wu Outing's poem "Long Summer" also said: "There is no way to go in spring, and the cherry blossoms return in spring."

In the folk, people drink cold drinks to cool off in summer. In summer, there is a custom of boiling tender broad beans in Jiangnan water town. In some places, there is also the custom of calling people in summer.

There is a custom of weighing people after lunch in the long summer. People hang a big wooden scale at the entrance of the village or platform, and a stool is hung on the scale hook. Everyone takes turns to sit on the stool and weigh people. When weighing flowers, the caller said auspicious words. The old man will say, "weigh 87 and live to 91." The weighing girl said, "105 Jin, someone is looking for you outside." Unwilling, unwilling, unwilling, the son of the champion has a fate. " The scales say "Long Summer" and "Weigher". Weighing in the teens and twenties, young officials will grow up. Seven county officials should not be guilty, and three public officials and nine ministers should climb. "flowers can only be typed in (that is, from decimals to large numbers) and cannot be typed out.

Legend has it that Zhuge Liang is related to the stories of Meng Huo and Liu Adou. It is said that after Meng Huo was surrendered to Shu by Zhuge Liang, he took orders from Zhuge Liang. On his deathbed, Zhuge Liang entrusted Meng Huo to visit the master of Shu once a year. Zhuge Liang instructed that day, which happened to be the long summer of this year. Meng Huo immediately went to worship Adou. Since then, every summer, Meng Huo has promised to visit Shu. A few years later, Sima Yan, Emperor Wu of Jin Dynasty, destroyed Shu and took Adou away. Meng Huo did not forget the entrustment of the Prime Minister. Every year, Chang Xia led troops to Luoyang to visit Dou E, and every time he went, he weighed Dou E to verify whether Dou E was abused by Emperor Wu of Jin Dynasty. He threatened to fight Kim if he mistreated Dou. In order to accommodate Meng Huo, every year in the long summer, Emperor Wu of Jin used glutinous rice and peas to make lunch for Adou.

Dou saw that peas were glutinous and fragrant, and he ate them twice. Meng Huo weighed people in the city, weighing several kilograms more each time than the previous year. Although Adou has no skill, he has Meng Huo's reputation as a man in the long summer, and Emperor Wu of Jin did not dare to bully him, so he lived a quiet and happy life and lived a long and happy life. Although this legend is different from historical facts, what people want is a peaceful world of "peace and happiness, long life".

People who weigh in the long summer will bring good luck to Adou, and people also pray to God to bring them good luck.