Between 1899 and 1917 the German archaeologist Robert Koldewey excavated Babylon for the German Oriental Society. He uncovered Nebuchadnezzar's palaces, the processional way and the Ishtar Gate, whose blue glazed bricks were later reconstructed in Berlin's Pergamon Museum. Countless bricks from the city are stamped with Nebuchadnezzar's name, which fits Daniel's picture of a king proud of the Babylon he had built. The foundations of the great ziggurat survive too; some connect it with the memory behind Babel, but the Genesis story is far older than that building, and no find can be tied to it directly.
From the palace area came a group of ration tablets, published in 1939, that list oil allotted to Jehoiachin, king of Judah, and his sons, a striking match for 2 Kings 25:27. The Babylonian Chronicles, now in the British Museum, record that Nebuchadnezzar captured the city of Judah in his seventh year and appointed a king of his choice, a date corresponding to March 597 BC. Other texts name Belshazzar as the son of King Nabonidus, ruling in Babylon while his father was away, which helps explain why Daniel could be offered only the third place in the kingdom.
The Cyrus Cylinder, found in 1879, presents Cyrus as a liberator who let deported peoples and their gods return home. It does not mention the Jews or Jerusalem, so it is not a copy of the decree in Ezra, but it shows a policy that fits it well.