4th period Fereira/Gervais

Main

Shang Dynasty

1766 BC - 1122 BC

Zhou Dynasty

1046 BC - 256 BC

Warring States

480 BC - 221 BC

Qin Dynasty

221 BC - 207 BC

Han Dynasty

206 BC - 220 AD

Inventions

Tea Production

2737 BC

they put a leaf in boiled water

Silk

2570 BC

silk comes from the cocoons of silkworms

Ice Cream

2000 BC

they poured a mixture of snow and saltpetre over the extirors of containers filled with syrup.

Alcohol

2000 BC

produced by fermenting rice, fruit, and honey.

Gunpowder

1161 BC

created by combining saltpetre and sulfur with charcoal

Iron and Steel Smelting

1050 BC

Paper

105 AD

Mechanical Clock

618 AD

water dripped on a wheel that made a full revolution every 24 hours

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