In 278 BC, Qin Jun conquered Kyoto of Chu. Seeing that his motherland was invaded, Qu Yuan was heartbroken, but he was always reluctant to give up his motherland. On May 5th, after writing his masterpiece Huai Sha, he died in Miluo River and wrote a magnificent patriotic movement with his own life.

Legend has it that after Qu Yuan's death, the people of Chu were so sad that they flocked to the Miluo River to pay homage to Qu Yuan. The fisherman paddled the boat and fished for his real body back and forth on the river. A fisherman took out rice balls, eggs and other foods prepared for Qu Yuan and threw them into the river, saying that ichthyosaurs, shrimps and crabs were full and would not bite the doctor. People followed suit after seeing it.

An old doctor took an altar of realgar wine and poured it into the river, saying that he would stun the dragon water beast with medicine so as not to hurt Dr. Qu. Later, people were afraid that rice balls would be eaten by dragons, so they came up with the idea of wrapping rice with neem leaves and then wrapping it with colored silk to make it develop into brown seeds. Since then, on the fifth day of May every year, there has been the custom of dragon boat racing, eating zongzi and drinking realgar wine in memory of the patriotic poet Qu Yuan.