Large amounts of available land
Availability of jobs other than farming
Rise of civilizations
Food surpluses
They were nomadic
They developed away from river valleys
They worshipped a single god
They built temples
Governments
Cities
Religions
Farming
An empire
A civilization
A city-state
A culture
Use tools
Use fire
Make weapons
Farm
Nomads did not build cities
Nomads did not make jewelry
Nomads did not raise animals
Nomads did not have government
To communicate with each other
As a part of religious rituals
To decorate the cave where they lived
As a symbol of wealth and power
Cultural diffusion
Destruction of civilization
The rise of cities
Turning from nomadic to settled life
It was a very scarce metal, so it was treasured
It could be used to make coins and jewelry
It could make sharper, stronger weapons and tools
It was much cheaper than bronze or copper
A shard of pottery
A partial skeleton
An ancient rock layer
Fossilized remains
Material remains
Written records
Fossilized remains
Beliefs and values
Wealthy merchants
Farmers and artisans
Priests and nobles
All people were equal
Public works
Metalworking
Art and architecture
Reading and writing
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