How long was the rule of the dynasty that was active when the Rosetta Stone was inscribed?
Rosetta Stone The Rosetta Stone is a granodiorite stele, found in 1799, inscribed with three versions of a decree issued at Memphis, Egypt in 196 BC during the Ptolemaic dynasty on behalf of King Ptolemy V. The top and middle texts are in Ancient Egyptian using hieroglyphic script and Demotic script, respectively, while the bottom is in Ancient Greek. As the decree has only minor differences between the three versions, the Rosetta Stone proved to be the key to deciphering Egyptian hieroglyphs.
Ptolemy V Epiphanes Ptolemy V Epiphanes (, "Ptolemaĩos Epiphanḗs" ≈ Ptolemy the Illustrious); reigned 204–181 BC), son of Ptolemy IV Philopator and Arsinoe III of Egypt, was the fifth ruler of the Ptolemaic dynasty. He inherited the throne at the age of five, and under a series of regents, the kingdom was paralyzed. The Rosetta Stone was produced during his reign as an adult.