How old is writing, and what evidence do we have of ancient writing on tablets?

While many reject the idea of there being prior written sources, written on clay or stone tablets, for the events in early Genesis, because we have “no evidence of tablets being used in Mesopotamia prior to about 3200 B.C.” --there is room to question that conclusion.
While I am cautious about the spin, but instead focusing on the artifacts themselves, we have this to consider:
Anyone have other, earlier examples?


Since the flood happened about 2400BC then thats a limit.
since it was a city life right off then it seems some guy started writing things immediately.
however it was not using a alphabet and so very few could use it.
I don’t think they had writing before the flood.
Any tablets found has the problem of dating.