Dispilio Tablet

The Dispilio tablet is a wooden tablet with some symbols on it that was discovered at an archeological site near modern-day Dispillio, in Western Macedonia. This discovery was made 1993. The tablet was dated to a time around 5.200 BC. Usually wood decays fast, but since the tablet was covered with mud and water, it did not decay. It was damaged when it was found.
As of 2021, the writing of the tabled has not been deciphered.