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
Province of Africa
There remained the work of arranging the future organization of the country. The earlier plan of investing the allies of Rome with the transmarine possessions that she acquired was no longer viewed with favour. Micipsa and his brothers retained in substance their former territory, including the districts recently wrested from the Carthaginians on the Bagradas and in Emporia; their long-cherished hope of obtaining Carthage as a capital was for ever frustrated; the senate presented them instead with the Carthaginian libraries. The Carthaginian territory as possessed by the city in its last days-- viz.
The narrow border of the African coast lying immediately opposite to Sicily, from the river Tusca (near Thabraca) to Thaenae (opposite to the island of Karkenah)--became a Roman province. In the interior, where the constant encroachments of Massinissa had more and more narrowed the Carthaginian dominions and Bulla, Zama, and Aquae already belonged to the kings, the Numidians retained what they possessed. But the careful regulation of the boundary between the Roman province and the Numidian kingdom, which enclosed it on three sides, showed that Rome would by no means tolerate in reference to herself what she had permitted in reference to Carthage; while the name of the new province, Africa, on the other hand appeared to indicate that Rome did not at all regard the boundary now marked off as a definitive one.
Do you see any typos or other mistakes? Please let us know and correct them
Reference address : https://www.ellopos.net/elpenor/rome/4-01-gracchi.asp?pg=66