I WONDER - When Were Rockets Invented?

The transcript discusses the historical use of rockets, initially developed using solid propellants for weapons and fireworks. It highlights the Chinese advancements in rocket technology during their conflicts with Mongol invaders, where they created gunpowder-fueled arrows.

What role did fireworks play in the context of the rockets developed by the Chinese?

How were the rockets used by the Chinese during their conflict with Mongol invaders?