They Wrote on Clay (Not Stone!)

From REDACTED: "You know how mad you gotta be to sit there and engrave complaints in STONE? Sheesh"

Not stone, but clay! Merchants like Ea-nāṣir (see more here) went to school and learned to write, just as we do today. At this time, the writing system used clay and a stylus, so the material was malleable. We know they had wax tablets, too. This tablet and stylus technology is as old as writing itself.

How they used clay seems remarkably similar to how we treat paper. And just like today, not everyone was great at math.