According to Manetho's list, the nine princes of this dynasty of Bubastis reigned altogether 120 years; but the sum of the reigns, according to the items in the list, only reaches 116 years. The years of the reigns given on special occasions, on the monuments mentioned, give at least 150 years for six alone of these nine princes. If we maintain the assertion of Manetho, the dynasty of the Bubastites reigned from the year 960 B.C. to the year 840 B.C.; if we calculate the length of the rule of this dynasty according to the generations of the princes, then, even if the length of each generation is taken only at 20 years, they must at least have reigned 180 years, _i.e._ from 960 to 780 B.C.[147] That the rule of the Bubastites ended about the year 780 B.C., at any rate in the minds of the chronographers who have preserved Manetho's list in the excerpt, follows from the fact that our excerpts put the celebration of the first Olympian festival in the reign of Petubastis, the prince who immediately succeeds the Bubastites. We may therefore assume that the Bubastites reigned over Egypt from the year 960 to about the year 780 B.C. The successors of Petubastis of Tanis, whose date thus falls about the year 775 B.C., are, according to Manetho, Osorkon (the third of this name), Psammus, and Zet. Diodorus tells us of a Tnephachtus, king of Egypt, who carried on war with the Arabs. One day, when in the desert, there was a lack of the means of subsistence, and Tnephachtus after a day of fasting enjoyed so highly a scanty meal, that he abominated luxury, and cursed the king who first introduced it. So earnest was he with this curse that he had it engraved in sacred characters in the temple of Zeus at Thebes.[148] Plutarch also tells us: On a campaign against the Arabs the baggage was left behind, and Technactis (Tnephachtus) gladly satisfied himself with the food which was at hand, and when he subsequently fell into a deep sleep on the straw, he was so pleased with this simple mode of life that he cursed Menes who first seduced the Egyptians from a simple and parsimonious mode of life, and caused this curse to be engraved on a memorial stone, with the sanction of the priests.[149] The son of this Tnephachtus is called Bocchoris by Diodorus and Plutarch; Manetho's list puts a king Bocchoris after Zet, and describes him as belonging to the district of Sais. The date of Bocchoris is fixed by the fact that the seventh celebration of the Olympian games,_ i.e._ the year 752, occurred during his reign.[150] If Petubastis reigned, as we saw, about the year 775 B.C., and Bocchoris ascended the throne about 753 B.C., the date of his father Tnephachtus, who is not mentioned in Manetho's list (he must be meant by the Zet of the list), will fall in the period between 770 and 753 B.C. We can only assume that Tnephachtus, in the time of Petubastis or Osorkon III. who succeeded Petubastis, rebelled against the reigning Pharaoh, and