The great, inner wall of Babylon was called by the ceremonial Akkadian name Imgur-Enlil, which means "The God Enlil Showed Favor." According to the text Tintir = Babylon, Imgur-Enlil had eight city gates, four on the eastern side of the Euphrates and four on the western side of the river. The Assyrian kings Esarhaddon and Ashurbanipal and the Babylonian kings Nabopolassar, Nebuchadnezzar II, and Nebonidus all undertook construction on Babylon’s great wall. Imgur-Enlil is one of the seven wonders of the ancient according to some classical sources.