Almost all Chinese festivals are linked to foods, and many have stories behind them. The origin of zongzi, rice dumplings wrapped in leaves, is most often linked to Qu Yuan.
He was a poet and a patriot who lived during the turbulent Warring States Period (475-221 BC). When the kingdom of Qin occupied his home, the kingdom of Chu, Qu threw himself into the Miluo River in protest.
It was said that the people of Chu dropped rice balls into the river to stop fish and shrimp from eating his body.
Later, a fisherman said he dreamed that Qu told him dragons had been eating most of the rice balls, so the people wrapped the rice balls with chinaberry leaves, and tied them up with colorful threads. They would row in the river and throw in the dumplings on the fifth day of the fifth lunar month, the day Qu died.
The types of zongzi eaten in China are as varied as the many regional cuisines, with different shapes and fillings, although they are almost always made of sticky or glutinous rice.
In Beijing, they are most commonly stuffed with a candied or dried jujube, the dried Chinese red date. Some zongzi are left plain, to be dipped into sugar. Other places in North China replace glutinous rice with glutinous yellow millet, and these days, some folks replace white glutinous rice with purple rice.
But the huge variety of zongzi south of the Yangtze River makes zongzi so much more a South China food. Other than jujubes, southern dumplings are stuffed with ham, braised pork, salted egg yolk, chestnut, fragrant mushroom, barbecued pork, and the ubiquitous red bean paste.
In some parts of Guangdong and Fujian provinces, and Guangxi Zhuang autonomous region, people soak the glutinous rice in alkaline water, which gives the rice a honey-colored glaze and a softer texture.
People in Sichuan province make a spicy zongzi with chili powder and preserved pork while in Suzhou, Jiangsu province, the locals put a piece of pork fat into the dumpling to give it a special aroma.
In Hainan, zongzi are wrapped in banana leaves, while dumplings on the mainland are wrapped in either bamboo or reed leaves.
Over on the island of Taiwan, zongzi are made with fried glutinous rice and fried pork, as well as bamboo shoots, dried mushroom and dried bean curd.
But the most famous zongzi in China are those from Zhejiang's Huzhou and Jiaxing, and these have become the national standard.
In Huzhou, salty zongzi are made with fresh pork flavored with soy sauce, while sweet zongzi are made with jujube or red bean paste, with a piece of pork fat added to make the paste even more aromatic.
Jiaxing zongzi use chicken and "eight treasure" stuffing, as well as the more common red bean paste and preserved duck egg yolk.
But fresh pork zongzi is the most popular.
The meat is taken from the hock and marinated with sugar, salt, soy sauce and baijiu (Chinese liquor) to give it plenty of flavor. It is then wrapped in bamboo leaf and boiled.
Sadly, for many young people in China, making zongzi at home has become a distant childhood memory, with the art fading as grandmothers and mothers age.
Most city dwellers buy them from restaurants or supermarkets now.