How Chinese gunpowder changed medieval Europe

Gunpowder, invented in China around the 9th century, dramatically altered warfare when it reached medieval Europe via the Silk Road. Initially used for fireworks, this mix of saltpeter, sulfur, and charcoal became a military tool by the 10th century under the Song Dynasty. Muslim traders and Mongol intermediaries carried this innovation westward, arriving in Europe by the late 13th century. This transfer ignited Europe's "gunpowder age," leading to cannons and handguns that reshaped battles and accelerated feudalism's decline. The recipe's secrecy, rather than the substance itself, made it a prized commodity.