The Rosetta Stone is a stele of granodiorite inscribed with three versions of a decree issued in 196 BC during the Ptolemaic dynasty of Egypt, on behalf of King Ptolemy V Epiphanes. From Wikipedia
Archaeologists discover a 2,500-year-old slate featuring a rare Paleo-Hispanic script and carvings of warriors, offering new insights into the 'lost' civilization of Tartessos.