Kafkania pebble
The Kafkania pebble is a pebble, small in size, and round in shape, found on 1 April 1994, near a river in Kafkania, north of Olympia. The pebble contains some Mycenaean Greek words, including a image of a labrys. The text and image on the pebble is suggested to have come from the 17th century BC. If the pebble is truly a ancient artifact, it would have been the earliest writing to come from Greece, and by far the earliest document written in Mycenaean Greek. However, it is most likely a modern-day hoax.