The feature of the Fertile Crescent that was the most important for its settlement are its rivers. This area is also known as the Cradle of Civilization. Two ancient civilizations appeared here - Ancient Egypt and Mesopotamia. Many innovations, such as writing, the wheel, agriculture, and the use of irrigation, are the work of these civilizations. Tigris and the Euphrates, which regularly flooded the region, and the Nile River created fertile soil and enabled the development of irrigation and agriculture. These things were the most important when it came to the settlement of this region.
could be wrong but i believe the answer is the theories of Social Darwinism were often used to justify the efforts of certain political, social, or economic views.
