Firework
Along with cookouts and hotdogs, fireworks are part of Fourth of July festivities.  Fireworks made of saltpeter (potassium nitrate), sulfur, and charcoal, were first used in China in the ninth century A.D.

The Chinese invented gunpowder about 2000 years ago. A Chinese monk named Li Tian produced firecrackers later. The first firecrackers were bamboo shoots filled with gunpowder which were exploded at the commencement of the New Year to scare away evil spirits. The Chinese still celebrate the invention of the firecracker every April 18 by offering sacrifices to Li Tian. Continue reading “Invention of Fireworks – Made in China”