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
The appointment to those offices remained with the community, and was subject to no restriction as respected the consuls and perhaps also the tribunes of the people and plebeian aediles; we have already adverted to the fact, that the Imperator reserved a right of proposal binding on the electors as regards the half of the praetors, curule aediles, and quaestors to be annually nominated. In general the ancient and hallowed palladia of popular freedom were not touched; which, of course, did not prevent the individual refractory tribune of the people from being seriously interfered with and, in fact, deposed and erased from the roll of senators.
As the Imperator was thus, for the more general and more important questions, his own minister; as he controlled the finances by his servants, and the army by his adjutants; and as the old republican state-magistracies were again converted into municipal magistracies of the city of Rome; the autocracy was sufficiently established.
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Reference address : https://www.ellopos.net/elpenor/rome/5-11-old-republic-new-monarchy.asp?pg=55