On the 15th day of the first lunar month, on the night of the full moon, there is a festival called the Lantern Festival. Families and friends gather for dinner and go out and see fireworks and light lanterns. Lanterns are put up for decoration, let fly, and floated in rivers. Fireworks and firecrackers have a special use as many believe that the explosions and light of firecrackers will scare away demons and evil ghosts. It is also part of the world's biggest fireworks usage when combined with Chinese New Year (which is handy given China produces 90% of the world's fireworks).