
The inventions that made ideas and empires boom
Gunpowder, guns, and printing originated in China and later transformed Eurasia.Human History: Printing, Gunpowder, and the Spread of Power

From East to West—and into overdrive
Movable type printing by 1440 in Europe spread new ideas fast, while gunpowder weapons remade warfare.Human History: Printing, Gunpowder, and the Spread of Power