sent back to Jinling, then turned and returned to Xizheng Hall.The matter of Wen Wang's gift-giving soon became common knowledge throughout the city.When others heard that Wen Wang had presented the...d by the Liao and Jin states militarily for a long time.Therefore, before that, saltpeter was mostly used by civilians to make gunpowder, fireworks, and alchemists' potions. Although its uses were qui...