When the Sumerians wanted to get a message across, they tended to write it in cuneiform on clay bricks. As writing the same message (“this wall belongs to King Lugalzagesi”) over and over again by hand would have become tedious, they created a stamp to speed up the process, a la the DMV.
Signs that made up the king’s inscription could be cut in reverse on a block and used to stamp the bricks. This first kind of printing went on for almost two thousand years. Remarkably, its use was reserved for mundane bricks, and no other purpose. Other types of text were not required in large numbers and there may also have been cultural resistance to the use of stamping for learned texts.
Why not produce poetry and other “learned texts” en masse? Perhaps to increase their value through scarcity. Perhaps because mindlessly stamping wet clay didn’t seem like an appropriate way to reproduce the text of a great epic.
Regardless, the stamp was a clever invention, perhaps even more so than we might think:
In a few stamped examples some signs are upside down. The best explanation is perhaps that individually mounted wedge signs had been carelessly replaced in the matrix after cleaning out the stamp. Here we could have not only printing, but even moveable type, two thousand years before Gutenberg!
Cuneiform, Irving Finkel and Jonathan Taylor
Oh, you crafty ancient Sumerians. Truly, there’s nothing new under the sun.