What really surprised me was how small the Cyrus Cylinder is. It is less than a foot long, but contains the famous inscription of Cyrus giving his edict that all the exiles of Babylon could return to their home countries. Thus, the cylinder dates to about 530 BC. The same edict is abbreviated and given in 2 Chronicles 36:22-23. Below is the opposite side.
I really wish I could read the Babylonian cuneiform language inscriptions.