The Cyrus Cylinder (Persian: منشور کوروش) is an ancient clay cylinder, now broken into several fragments, on which is written a declaration in Akkadian cuneiform script in the name of the Persia's Achaemenid king Cyrus the Great. It dates from the 6th century BC and was discovered in the ruins of Babylon in Mesopotamia (modern Iraq) in 1879. It is currently in the possession of the British Museum, which sponsored the expedition that discovered the cylinder. It was created and used as a foundation deposit following the Persian conquest of Babylon in 539 BC, when the Neo-Babylonian Empire was invaded by Cyrus and incorporated into his Persian Empire.
The text on the Cylinder praises Cyrus, sets out his genealogy and portrays him as a king from a line of kings. The Babylonian king Nabonidus, who was defeated and deposed by Cyrus, is denounced as an impious oppressor of the people of Babylonia and his low-born origins are implicitly contrasted to Cyrus's kingly heritage. He was the recipient of the 'writing on the wall'.
The prophet Daniel was in court at that time. Nabonidas was on a war footing having no time for 'regal' tasks, Nabonidas, one son was to deal with court. However, Nebuchadnezzar knew what power was, chose elsewhere.
The victorious Cyrus is portrayed as having been chosen by God to restore peace and order to the Babylonians. The text states that Cyrus was welcomed by the people of Babylon as their new ruler and entered the city in peace. It appeals to Marduk to protect and help Cyrus and his son Cambyses. It extols Cyrus as a benefactor of the citizens of Babylonia who improved their lives, repatriated displaced people and restored temples and cult sanctuaries across Mesopotamia and elsewhere in the region. It concludes with a description of how Cyrus repaired the city wall of Babylon and found a similar inscription placed there by an earlier king.
The Cylinder's text has traditionally been seen by biblical scholars as corroborative evidence of Cyrus' policy of the repatriation of the Jewish people following their Babylonian captivity(an act that the Book of Ezra attributes to Cyrus), as the text refers to the restoration of cult sanctuaries and repatriation of deported peoples. This interpretation has always been disputed, as the text identifies only Mesopotamian sanctuaries, and makes no mention of Jews, Jerusalem, or Judea.
The Cylinder has also been called the oldest known charter or symbol of universal human rights, a view rejected by others as anachronistic and a misunderstanding of the Cylinder's generic nature as a typical statement made by a new monarch at the beginning of his reign.