Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
Syria and Egypt
While in the peninsula of Asia Minor Rome thus substantially conducted the government and, although much was done without or in opposition to her wishes, yet determined on the whole the state of possession, the wide tracts on the other hand beyond the Taurus and the Upper Euphrates as far down as the valley of the Nile continued to be mainly left to themselves. No doubt the principle which formed the basis of the regulation of Oriental affairs in 565, viz. That the Halys should form the eastern boundary of the Roman client-states,(35) was not adhered to by the senate and was in its very nature untenable.
35. Cf. III. IX. Extension of the Kingdom of Pergamus
The political horizon is a self-deception as well as the physical; if the state of Syria had the number of ships of war and war-elephants allowed to it prescribed in the treaty of peace,(36) and if the Syrian army at the bidding of the Roman senate evacuated Egypt when half-won(37), these things implied a complete recognition of hegemony and of clientship.
36. Cf. III. IX. Extension of the Kingdom of Pergamus
37. Cf. III. X. Intervention in the Syro-Egyptian War
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Reference address : http://www.ellopos.net/elpenor/rome/4-01-gracchi.asp?pg=98