1. The Metal Ages

• It began around 3.500 B.C

2. The Metal Ages

People learnt to make tools out of metal. They used copper, bronze and iron.

3. The Metal Ages

At the end of this era, the first cities appeared.

4. The Metal Ages

People trated their goods without using money.

5. The Metal Ages

People from the metal ages invented the plough, the sailboat and the wheel.