The Duanwu Festival, otherwise known as the Dragon Boat Festival, was established in remembrance of Qu Yuan, a ministerial scholar and patriotic poet of the state of Chu during the Warring States period (475-221 BC).
Qu Yuan, who died by committing suicide in the Miluo River, was known as a good man. Shortly after he died, the local people, at the time of the event, threw food into the water to distract, and feed, the fish from eating Qu Yuan's body. They also sat on long, narrow paddle boats, known as dragon boats, making sound to scare away the fish.
Traditional celebrations of the Dragon Boat Festival include eating zongzi, drinking realgar wine, and racing dragon boats.
The festival occurs on the fifth day of the fifth month on the Chinese lunar calendar. On the Gregorian calendar, the date varies from year to year, and usually falls in late May or June.