The article contains a collection of historical information about the Middle Eastern region of the Tigris and Euphrates Rivers. Topics include Biblical references to the rivers in the books of Genesis and Revelation, the ancient Akkadian city of Babylon which created channels from the two rivers to navigate, and the Great Mosque of Samarra, also known as the Malwiya, erected during the rule of the Abbasid caliph Al-Mutawakkil in 851.