Final answer:
The Tigris and Euphrates rivers run through present-day Iraq. They were important to ancient civilizations and are often referred to as the Cradle of Civilization.
Step-by-step explanation:
The Tigris and Euphrates rivers run through present-day Iraq. These rivers were of great importance to ancient civilizations in the region, such as Mesopotamia. The Tigris and Euphrates rivers provided water for agriculture and were used for transportation and trade. Additionally, the region between these two rivers is often referred to as the Cradle of Civilization, due to the emergence of some of the earliest cities and writing systems in the world.