A nearly 7,000-year-old ceramic prism with what might be pre-alphabetic writing has been unveiled to the public for the first time by the Regional Museum of History in Bulgaria’s Black Sea city of Burgas. The prism-shaped prehistoric artifact featuring the supposedly pre-alphabetic signs on its four sides was discovered during the excavations of an Early Chalcolithic settlement mound near Burgas back in 2008, and has never been shown to the public before. The artifact (and the Burgas Chalcolithic Mound where it was found) dates back to the Early Chalcolithic (Aeneolithic, Copper Age) – 4,900 / 4,850-4,600 / 4,550 BC, the...