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.