Ghost money
In Chinese ancestor worship, it is traditional to burn offerings that look like bank notes and other goods in order to give the deceased spending money and wealth in the afterlife.
Category: East Asia
Medieval rocket launchers
We think of rocket launchers as a modern invention, but the Koreans were using them four hundred years ago. The hwacha could fire two hundred rockets at once, blowing up enemies more than a hundred metres away.
The Generalist Academy 