The Tigris is one of the two major rivers in Mesopotamia, flowing through modern-day Iraq and parts of Turkey and Syria. It is known for its historical significance, as it supported ancient civilizations such as the Assyrians and Babylonians. The river is approximately 1,850 kilometers long and is vital for agriculture and water supply in the region. Along with the Euphrates, the Tigris forms the backbone of the fertile crescent, a region that is often referred to as the cradle of civilization. The river's banks are dotted with archaeological sites, showcasing the rich history and culture that flourished along its waters.