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.
Line of succession to the former Egyptian throne Under the Muhammad Ali dynasty, the line of succession to the former Egyptian throne was subject to a number of changes during its history. From its founding in 1805 until 1866, the dynasty followed the imperial Ottoman practice of agnatic seniority, whereby the eldest male in any generation would succeed to the throne. In 1866, however, the then Khedive of Egypt Isma'il Pasha obtained a "firman" from the Ottoman Emperor which restricted the succession to the male-line descendants of Isma'il Pasha. The resulting succession remained in force until the abolition of the Egyptian monarchy in 1953, following the 1952 Egyptian Revolution.