http://en.wikipedia.org/wiki/Tigris%E2%80%93Euphrates_river_system
Basically, the region is a desert and water meant life or death. If you controlled the water then you had power and God made it.
the Tigris and Euphrates were so important because they caused flooding in Mesopotamia which fed the soil. the Area between the two rivers is referred to as the fertile crescent. without the flooding the fertile crescent would have become desert like leading to starvation. It is also thought that the fertile crescent is the heart of the neolithic revolution which lead to how we farm today.
The Tigris and Euphrates rivers
The Tigris and Euphrates continue to be the two most important rivers in Mesopotamia.
Mesopotamia has two rivers, the Tigris and the Euphrates.
Nile River, The Tigris River, and the Euphrates River. The four largest rivers are the Tigris, Euphrates, Nile, and Jordan.
The Tigris and the Euphrates were the main rivers of the fertile crescent
Those two rivers are the Euphrates and Tigris.
Mesopotamia has the Euphrates and Tigris Rivers.
The Tigris and Euphrates rivers meet in Iraq.
The Tigris and Euphrates Rivers flow into the Persian Gulf.
There are two important rivers in Mesopotamia the Euphrates and the Tigris.
The Tigris and Euphrates rivers because they surround Ancient Mesopotamia.
the nile and tigris