When tranquillity was restored to Rome after the riots connected with the murder of the Gracchi, the Senate ordered a Temple of Concord to be built, B.C. 121, in commemoration of the event. This temple was on the elevated part of the Vulcanal, and was of considerable magnitude. It was used for the occasional meetings of the Senate, and contained many valuable works of art. Adjoining this temple, Opimius, the consul, erected the Basilica Opimia, which was used by the silversmiths, who were the bankers and pawnbrokers of Rome. The whole quarter on the north side of the Forum, where this basilica stood, was the Roman exchange— the focus for all monetary transactions.

[Sidenote: Private palaces.]

[Sidenote: Houses of the nobles.]

The increasing wealth and luxury of Rome, especially caused by the conquest of Asia, led to the erection on the Palatine of those magnificent private residences, which became one of the most striking features the capital. The first of these historical houses was built by M. Livius Drusus, and overlooked the city. It afterwards passed into the hands of Crassus, Cicero, and Censorinus. Pompey had a house on the Palatine, but afterwards transferred his residence to the Casinae, another aristocratic quarter. M. Aemilius Lepidus also lived in a magnificent palace; the house of Crassus was still more splendid, adorned with columns of marble from Mount Hymettus. The house of Catullus excelled even that of Crassus. This again was excelled by that of Aquillius on the Viminal, which for some time was the most splendid in Rome, until Lucullus occupied nearly the whole of the Pincian Hill with his gardens and galleries of art, which contained some of the chefs d'oeuvre of antiquity. The gardens of Servilius, which lay on the declivity of the Houses of Aventine, were adorned with Greek statues, exceeded in beauty by those of Sallust between the Pincian and the Quirinal hills, built with the spoils of Numidia, and ultimately the property of the emperors. The house of Clodius on the Palatine, near to that of Cicero, was one of the finest in Rome, occupied before him by Scaurus, who gave for it nearly fifteen million sesterces, about $650,000. It was adorned with Greek paintings and sculptures. The house of Cicero, which he bought of Crassus, cost him $150,000. Its atrium was adorned with Greek marble columns thirty-eight feet high. Hortensius lived in a house on the Palatine, afterwards occupied by Augustus. The residence of his friend Atticus, on the Quirinal, was more modest, whose chief ornament was a grove. Pompey surrounded his house with gardens and porticos.

[Sidenote: Destruction and rebuilding of the Capitol.]

The year 83 B.C. was marked by the destruction by fire of the old Capitoline Temple, which had withstood the ravages of the Gauls. Sulla aspired to rebuild it, and caused to be transported to Rome for that purpose the column of the Olympian Zeus at Athens. It was completed by Caesar, and its roof was gilded at an expense of $15,000,000. The pediment was adorned with statuary, and near it was a colossal statue of Jupiter.

[Sidenote: Theatre of Pompey.]

In the early ages of the republic there were no theatres at Rome, theatrical representations being regarded as demoralizing. The regular drama was the last development even of Grecian genius. The Roman aristocracy set their faces against dramatic entertainments till after the conquest of Greece. These plays were introduced and performed on temporary stages in the open air, or in wooden buildings. There was no grand theatre till Pompey erected one of stone, B.C. 55, in the Campus Martius, which was capable of holding eighty thousand spectators, and it had between its numerous pillars three thousand bronze statues. [Footnote: Plin. H. N., xxxvi. 24.] He also erected, behind his theatre, a grand portico of one hundred pillars, which became one of the most fashionable lounging-places of Rome, and which was adorned with statues and images. Pompey also built various temples.

[Sidenote: Forum Julian.]

[Sidenote: Basilica Julia.]