to the Roman Republic in 64 BC, but remained a civitas libera. Roman period The Roman emperors favored the city from the first moments, seeing it as a more suitable capital for the eastern part of the empire than Alexandria could be, because of the isolated position of Egypt. To a certain extent they tried to make it an eastern Rome. Julius Caesar visited it in 47 BC, and confirmed its freedom. A great temple to Jupiter Capitolinus rose on Silpius, probably at the insistence of Octavian, whose cause the city had espoused. A forum of Roman type was laid out. Tiberius built two long colonnades on the south towards Silpius. Strabo, writing in the reign of Augustus and the first years of Tiberius, states that Antioch is not much smaller than Seleucia and Alexandria; Alexandria had been said by Diodorus Siculus in the mid-1st Century BC to have 300,000 free inhabitants, which would mean that Antioch was about this size in Strabo's time. Agrippa and Tiberius enlarged the theatre, and Trajan finished their work. Antoninus Pius paved the great east to west artery with granite. A circus, other colonnades and great numbers of baths were built, and new aqueducts to supply them bore the names of Caesars, the finest being the work of Hadrian. The Roman client, King Herod (most likely the great builder Herod the Great), erected a long stoa on the east, and Agrippa (–12 BC) encouraged the growth of a new suburb south of this. One of the most famous urban additions to Antioch, done by the Romans probably under Augustus when the city had more than half a million inhabitants, was the Circus of Antioch: it was a Roman hippodrome. Used for chariot racing, it was modelled on the Circus Maximus in Rome and other circus buildings throughout the empire. Measuring more than in length and of width, the Circus could house up to 80,000 spectators. Zarmanochegas (Zarmarus) a monk of the Sramana tradition of India, according to Strabo and Dio Cassius, met Nicholas of Damascus in Antioch around 13 AD as part of a Mission to Augustus. At Antioch Germanicus died in 19 AD, and his body was burnt in the forum. An earthquake that shook Antioch in AD 37 caused the emperor Caligula to send two senators to report on the condition of the city. Another quake followed in the next reign. Titus