Early Gunpowder

Timeline

1. 800–960Chang'an and Luoyang · HenanTang alchemists and alchemical texts already recorded the violent reaction of saltpeter-sulfur mixtures on fire; early uses were mostly in fireworks and medical experiments, with no systematic military firearm system yet formed.
2. 1011–1020Northern Song frontier defenses · HebeiAround 1011–1020 CE, Song forces tried simple incendiary fireballs and rockets in city and frontier defense; the court emphasized saltpeter mining and formula management, moving gunpowder from the laboratory to the battlefield.
3. 1040–1044Kaifeng armaments compilation bureau · HenanZeng Gongliang and others compiled the Wu Jing Zong Yao, recording numerous gunpowder formulas and firearm manufacturing methods, marking the entry of early Northern Song gunpowder technology into a documented and institutionalized stage, providing a model for later firearm development.