[enchantments]

The clay tablets we have from the bronze age themselves seem only preserved by chance. They are found in store rooms in layers of cities that suffered widespread destruction, accidentally firing the clay records. So what we have is kind of sporadic, some letters from one king to another here, a bunch of apparently unremarkable palace economy bookkeeping there, then we tie it together with what we learn from archeology (and most exciting in recent times, from genetics). We also have a lot of stone stelas. But they certainly didn't leave us a well preserved big picture. I imagine future people would see the same story for us: A big stone inscription here, some documents accidentally printed on very high quality stock stored in an accidentally optimal place there, etc.

Another fun glimpse: It has been speculated, based on evidence in the Uluburun shipwreck, that some bronze age societies used a wooden book-like object with wax or clay faces as an easily erasable notepad. Whoever owned that may have thought about it the same way we think about electronic records blinking out. Or maybe they didn't think about the future at all.

[wl]

Most clay tablets pulled out of the ground are unfired. The act of removing unfired tablets that have been in the ground for so long kicks off some decay, so it used to be common to fire excavated tablets to preserve them. There's modern conservation techniques that remove the need to fire tablets, but those techniques post-date the lawful flow of material culture to western museums, so pretty much everything you'll see is fired. While fires in antiquity might have inadvertantly helped preserve some tablets that might not have otherwise survived, this is hardly the most common case. The talk of fires preserving tablets is mostly used to illustrate the stark difference in durability between records recorded on clay and records recorded on vellum or papyrus.