There is a claim that Gradeshnitsa tablets are deciphered, but it is highly disputed as being scientific. See the references in this short wikipedia article. h

There is a claim that Gradeshnitsa tablets are deciphered, but it is highly disputed as being scientific. See the references in this short wikipedia article. https://en.wikipedia.org/wiki/Gradeshnitsa_tablets https://en.wikipedia.org/wiki/Gradeshnitsa_tablets