Monumentum Ancyranum, it was adjoining the basilica Julia, whereas it is commonly supposed to have been situated on the other side; but I knew from Ovid[21], that it was at the end of the Forum, and in this manner the whole Forum was made out. Respecting the extent of the Roman Forum equally erroneous notions are current, because not only the district occupied by the ancient Forum, but the whole valley far and wide, up to the eminence from which the Via Sacra came down, has several times been covered with rubbish. This whole district is now called Campo Vaccino, and Andreas Fulvius and Bartholomaeus Marliani imagined that all this space, from the Capitol to the arch of Titus, was occupied by the Forum. People were the more tempted to assume this extent, as they entertained the most exaggerated notions about the population and magnitude of the city, as is the case, e.g., in Lipsius’ book, “De Magnitudine Urbis Romae.” He believes that Rome extended north as far as Civita Castellana, a distance of from thirty-five to forty English miles; for he imagined that the numbers of the census under the first emperors were those of the inhabitants of the city, whereas they embraced the whole body of citizens, and accordingly amounted to millions. Nothing can be more senseless than what Lipsius has written on this subject; the exaggerations are enormous: sometimes he was misled by appearances, but sometimes he has not even this excuse. The Forum, in comparison with the present Campo Vaccino, was small, and in all our maps it is pushed too far towards the Capitol. It was situated between the Tarpeian and the Palatine, but did not occupy the whole length of the Capitoline; the triumphal arch of Septimius Severus stood beside, and not in, the Forum.