Why did the ancient civilizations of Mesopotamia and Egypt settle around rivers? A- Trade
B- Fertile Soil
C- Irrigation
D- All of the above

Mesopotamia is Greek for 'a land between two rivers'. However, Mesopotamia is different because the two rivers kept the land fertile through regular flooding of the area. Like the Nile River in Egypt, the Euphrates and Tigris Rivers allowed the Mesopotamians to grow crops and to settle between these two rivers.

Explanation:

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.