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==History==
==History==
Gunpowder (now called black powder) was invented in [[China]] by about 1100 A.D., and possibly earlier. It was brought to Europe sometime after 1200. The oldest European account of a formula is in a letter from [[Francis Bacon]] to [[Pope Clement IV]] in 1267 A.D. By 1275, [[Albertus Magnus]] described a formula of four parts saltpeter to one part charcoal and one part sulfur.
Gunpowder (now called black powder) was invented in [[China]] by about 1100 A.D., or possibly earlier. It was brought to Europe sometime after 1200. The oldest European account of a formula is in a letter from [[Francis Bacon]] to [[Pope Clement IV]] in 1267 A.D. By 1275, [[Albertus Magnus]] described a formula of four parts saltpeter to one part charcoal and one part sulfur.
When Europeans ground together charcoal, saltpeter, and sulfur they called it "serpentine powder." It easily absorbed moisture, and decomposed into its three parts when bounced around in long trips. It would not not burn if packed too tightly. By 1500 serpentine powder was replaced by corned gunpowder, which was pressed into pellets and screened to a uniform size.
When Europeans ground together charcoal, saltpeter, and sulfur they called it "serpentine powder." It easily absorbed moisture, and decomposed into its three parts when bounced around in long trips. It would not not burn if packed too tightly. By 1500 serpentine powder was replaced by corned gunpowder, which was pressed into pellets and screened to a uniform size.