Chakjobon
Chakjobon is a Preclassic Maya archaeological site located in the Balam Kú Biosphere Reserve of southern Campeche in Mexico. The site is notable for the discovery of an elite burial chamber decorated with ancient murals paintings from the late Preclassic period considered as one of the oldest Maya murals in the region with one of the few earliest surviving examples of Preclassic Maya script.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).