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Fireworks were invented in medieval China in the 7th century to scare away evil spirits, a natural application of gunpowder, one of the Four Great Inventions of ancient China. Such important events and festivities as Chinese New Year and the Mid-Autumn Moon Festival were and still are times when fireworks are guaranteed sights. China is the largest manufacturer and exporter of fireworks in the world. (Source: Wikipedia)
I put these "gifs" of firework to show you the resemblance (according to me) :) of mandalas and fireworks...