Chinese food
Tea (as a drink)
Noodles (inspiring pasta in Italy)
The invention of paper (+ paper money, toilet paper) & printing
Gunpowder, explosives, landmine, cannonballs, rockets and fireworks
The crossbow, fire lance, handgun, flamethrower, and other weapons
The blast furnace, cast iron and finery forge
The stirrup, horse collar and horse harness
The compass & nautics (e.g. rudder, oar, junk)
Advances in engineering (arched bridges, dams, locks, canals)
Porcelain, celadon & lacquer
Acupuncture & Chinese medicine
Playing cards, dominos, Mahjong, Go and other games
The wheelbarrow, plowshare, bellows, fork and other practical inventions
The use of coke and natural gas as fuel
Civil service examinations & meritocratic system
Chinese martial arts (Kung-fu)