23h 30min, jan 1, 1000 y - gunpowder
Gunpowder was invented by Chinese Taoist alchemists about 1000 A.D. when they tried to find a potion to gain human immortality by mixing elemental sulfur, charcoal, and saltpeter.
The chineese used gunpowder mainly for firecrackers while the europeans used it for cannons and other weapons
Added to timeline:
9 Chinese inventions