Dancers at the Firecracker Festival.Every year, on the 4th day of the 1st lunar month, Dong Ky village holds a firecracker festival. Legend has it that during the reign of the 6th Hung King (BC), Thien Cuong, a villager of Dong Ky, joined the army to repel the An invaders. As Thien Cuong fought bravely and achieved many feats, the Hung King gave him the title of Thien Cuong Lord, and the Dong Ky village started worshipping him. Burning firecrackers to welcome Thien Cuong, the returning hero, became part of the legend and the basis of the Dong Ky Firecracker festival. To prepare for the festival, a number of families in the village are selected, prior to the Lunar New Year, to produce the firecrackers.