[155] The Portico of Octavia stood between the Flaminian circus and the theatre of Marcellus, enclosing the temples of Jupiter and Juno, said to have been built in the time of the republic. Several remains of them exist, in the Pescheria or fish-market; they were of the Corinthian order, and have been traced and engraved by Piranesi.
[156] The magnificent theatre of Marcellus was built on the site where Suetonius has before informed us that Julius Caesar intended to erect one (p. 30). It stood between the portico of Octavia and the hill of the Capitol. Augustus gave it the name of his nephew Marcellus, though he was then dead. Its ruins are still to be seen in the Piazza Montanara, where the Orsini family have a palace erected on the site.
[157] The theatre of Balbus was the third of the three permanent theatres of Rome. Those of Pompey and Marcellus have been already mentioned.
[158] Among these were, at least, the noble portico, if not the whole, of the Pantheon, still the pride of Rome, under the name of the Rotondo, on the frieze of which may be seen the inscription,
M. AGRIPPA. L. F. COS: TERTIUM. FECIT.
Agrippa also built the temple of Neptune, and the portico of the
Argonauts.
[159] To whatever extent Augustus may have cleared out the bed of the Tiber, the process of its being encumbered with an alluvium of ruins and mud has been constantly going on. Not many years ago, a scheme was set on foot for clearing it by private enterprise, principally for the sake of the valuable remains of art which it is supposed to contain.
[160] The Via Flaminia was probably undertaken by the censor Caius Flaminius, and finished by his son of the same name, who was consul A.U.C. 566, and employed his soldiers in forming it after subduing the Ligurians. It led from the Flumentan gate, now the Porta del Popolo, through Etruria and Umbria into the Cisalpine Gaul, ending at Ariminum, the frontier town of the territories of the republic, now Rimini, on the Adriatic; and is travelled by every tourist who takes the route, north of the Appenines, through the States of the Church, to Rome. Every one knows that the great highways, not only in Italy but in the provinces, were among the most magnificent and enduring works of the Roman people.
[161] It had formed a sort of honourable retirement in which Lepidus was shelved, to use a familiar expression, when Augustus got rid of him quietly from the Triumvirate. Augustus assumed it A.U.C. 740, thus centring the last of all the great offices of the state in his own person; that of Pontifex Maximus, being of high importance, from the sanctity attached to it, and the influence it gave him over the whole system of religion.
[162] In the thirty-six years since the calendar was corrected by Julius Caesar, the priests had erroneously intercalated eleven days instead of nine. See JULIUS, c. xl.