1. Thousands of years ago Mesopotamia's weather was semi-arid, with hot summers and sporadic rain. However, the presence of two rivers, the Tigris and the Euphrates, made it humid, fertile and ideal for nomads to start settlements
2. the two great rivers, the Tigris and Euphrates.
3. The Fertile Crescent. Mesopotamia's soil was uniquely fertile, which gave humans reason to settle in the region and begin farming. ...
Trade Routes. ...
Tigris and Euphrates. ...
Flat With Few Mountains.
BOOM! Hope this helps! :)