The first fireworks weren’t made in a lab—they likely happened by accident. Ancient Chinese alchemists around 200 BCE mixed saltpeter, charcoal, and sulfur, tossed it into a fire... and boom. But the real magic came when they packed that mixture into bamboo stalks—a natural choice, since dry bamboo already popped and cracked in fire. 

That explosive upgrade turned noisy firewood into firecrackers, believed to scare away evil spirits. Centuries later, the idea launched into the sky—literally—with the invention of aerial fireworks.