In ancient times, what was the area between the tigris and euphrates rivers called?

When talking of the ancient cultures, the area between Tigris and Euphrates is referred to as "Mesopotamia" - and I believe that this is the correct answer .

The name actually means "between (meso) the two rivers" - the two rivers were very important for the region as they allowed the irrigation of the land

Answer erosion,oil spills,pollution,tourism,urban development;