ng time.Therefore, before that, saltpeter was mostly used by civilians to make gunpowder, fireworks, and alchemists' potions. Although its uses were quite widespread, the consumption volume was actual...e Such a simple question, does Your Highness need to consider it”"Haha."A pair of snow-white eyebrows hung above his ears as he raised his head to look at the King of Ning and said, "So, Your Highness...