Complete the following sentences by using suitable words in the blanks:

The Greeks referred to Mesopotamia as ___________.

The Greeks referred to Mesopotamia as Land between the rivers.

The fertile valley formed between two rivers, the Euphrates and the Tigris of West Asia is the Mesopotamia. The southern valley formed by these rivers is the central area of the Mesopotamian civilization. The barren land was made very fertile by these two rivers. The fertility of this Mesopotamia invited many nomadic tribes such as the Sumerians, Babylonians, Assyrians and Persians to establish control over this area.