The geographic feature that characterizes the region known as the Tigris-Euphrates Valley is a series of fertile river valleys. This area is historically significant as it is often referred to as the Cradle of Civilization, where early humans established some of the first cities and societies. The abundant water supply from the Tigris and Euphrates Rivers allowed agricultural development, leading to advances in culture, writing, and governance. Today, this region continues to hold archaeological significance, providing insights into the emergence of civilization and the progression of human history.