[147] The Lustrum was a period of five years, at the end of which the census of the people was taken. It was first made by the Roman kings, then by the consuls, but after the year 310 from the building of the city, by the censors, who were magistrates created for that purpose. It appears, however, that the census was not always held at stated periods, and sometimes long intervals intervened.
[148] Augustus appears to have been in earnest on these occasions, at least, in his desire to retire into private life and release himself from the cares of government, if we may believe Seneca. De Brev. Vit. c. 5. Of his two intimate advisers, Agrippa gave this counsel, while Mecaenas was for continuing his career of ambition.—Eutrop. 1. 53.
[149] The Tiber has been always remarkable for the frequency of its inundations and the ravages they occasioned, as remarked by Pliny, iii. 5. Livy mentions several such occurrences, as well as one extensive fire, which destroyed great part of the city.
[150] The well-known saying of Augustus, recorded by Suetonius, that he found a city of bricks, but left it of marble, has another version given it by Dio, who applies it to his consolidation of the government, to the following effect: "That Rome, which I found built of mud, I shall leave you firm as a rock."—Dio. lvi. p. 589.
[151] The same motive which engaged Julius Caesar to build a new forum, induced Augustus to erect another. See his life c. xx. It stood behind the present churches of St. Adrian and St. Luke, and was almost parallel with the public forum, but there are no traces of it remaining. The temple of Mars Ultor, adjoining, has been mentioned before, p. 84.
[152] The temple of the Palatine Apollo stood, according to Bianchini, a little beyond the triumphal arch of Titus. It appears, from the reverse of a medal of Augustus, to have been a rotondo, with an open portico, something like the temple of Vesta. The statues of the fifty daughters of Danae surrounded the portico; and opposite to them were their husbands on horseback. In this temple were preserved some of the finest works of the Greek artists, both in sculpture and painting. Here, in the presence of Augustus, Horace's Carmen Seculare was sung by twenty-seven noble youths and as many virgins. And here, as our author informs us, Augustus, towards the end of his reign, often assembled the senate.
[153] The library adjoined the temple, and was under the protection of Apollo. Caius Julius Hegenus, a freedman of Augustus, and an eminent grammarian, was the librarian.
[154] The three fluted Corinthian columns of white marble, which stand on the declivity of the Capitoline hill, are commonly supposed to be the remains of the temple of Jupiter Tonans, erected by Augustus. Part of the frieze and cornice are attached to them, which with the capitals of the columns are finely wrought. Suetonius tells us on what occasion this temple was erected. Of all the epithets given to Jupiter, none conveyed more terror to superstitious minds than that of the Thunderer—
Coelo tonantem credidimus Jovem
Regnare.—Hor. 1. iii. Ode 5.
We shall find this temple mentioned again in c. xci. of the life of
Augustus.