4th hour Weber/Koziol

Main

Shang Dynasty

1600 bc - 1045 bc

Magic (Mirrors)

1550 bc

Acupuncture

1500 bc

Fishing Reel

1195 bc

Zhou Dynasty

1046 bc - 256 bc

Pinhole Camera

960 bc

Clock

725 bc

Playing Cards

618 bc

Toilet Paper

589 bc

Toothpaste

500 bc

Warring States

475 bc - 221 bc

Horse Collar

300 bc

Compass

221 bc

Qin Dynasty

221 bc - 207 bc

Han Dynasty

220 bc - 206 bc

Kite

200 bc

Wheelbarrow

118 bc

Gun Powder

1280 ad

Chopsticks

1350