Because the rivers over flowed leaving a deposit of silt on the land making it fertile Thus leading from a hunter gatherer society to the beginnings of agriculture
why are river valleys the cradles in ancient civilization
The first civilization was born in the river valleys of Mesopotamia, Egypt, India, and China.
The first civilization was born in the river valleys of Mesopotamia, Egypt, India, and China.
In the river valleys
the Nile river
No, mountains and valleys.
The Huang He river, the Ganges river, the Nile river, and the other one I'm not quiet sure about.
The Nile River Valley and the Indus River Valley.
The first civilization arose in the Nile delta in ancient Kemet (Egypt) and then spread to Mesopotamia at the Tigris and Euphrates Rivers.
In fertile river valleys.
In the Yellow and Yangtze river valleys
Indus, yellow 3000