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
While formerly the commander-in-chief of the one year had reckoned it an honour to serve next year on the staff of his successor, the fact that the consular Cato took service as a military tribune under Tiberius Sempronius Longus (560) and Manius Glabrio (563;(47)), was now regarded as a demonstration against the new-fashioned arrogance.
47. Cf. III. IX. Landing of the Romans
Formerly the thanks of the community once for all had sufficed for service rendered to the state: now every meritorious act seemed to demand a permanent distinction. Already Gaius Duilius, the victor of Mylae (494), had gained an exceptional permission that, when he walked in the evening through the streets of the capital, he should be preceded by a torch-bearer and a piper. Statues and monuments, very often erected at the expense of the person whom they purported to honour, became so common, that it was ironically pronounced a distinction to have none. But such merely personal honours did not long suffice.
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Reference address : https://www.ellopos.net/elpenor/rome/3-11-government-governed.asp?pg=60