How Did The Iranians Expel The Mongols From Iran?

  While Genghis Khan was conquering Transoxania and Persia, several Chinese who were familiar with gunpowder were serving in Genghis’s army. “Whole regiments” entirely made out of Chinese were used by the Mongols to command bomb-hurling trebuchets during the invasion of Iran. Historians have suggested that the Mongol invasion had brought Chinese gunpowder weapons to Central Asia. One of these was the hunching, a Chinese mortar. Books written around the area afterward depicted gunpowder weapons that resembled those of China.