Silk
very important trade item (the SILK road) Romans aristocrats wore silk to show their affluence and high status.
Gunpowder
very important to advance military technology EX: guns , Spread through the major trade routes. Gunpower was also used for fireworks
Paper and the Movable type
The Chinese invented paper and the movable type which increased production of literature. Paper money was used because it was
Magnetic Compass
This would be important because the magnetic compass helps Europeans during the age of discovery when Columbus sailed to the Americas.
Junk (ship)
Hope this helps ฅ^•ﻌ•^ฅ