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.
Mentuhotep I Mentuhotep I (also Mentuhotep-aa, i.e. "the Great") was a likely Theban nomarch and independent ruler of Upper Egypt during the early First Intermediate Period. He was later probably considered to be the founding father of the Eleventh dynasty, which rose to prominence under Intef II and Mentuhotep II.