The most important event in the history of the institution, after its foundation, was its establishment in the home which it was to occupy down to our own time. Its new habitation was prepared for it by the Pope who has probably been the most maligned in history--Alexander VI. A magnificent site was appropriated for it, and the construction of suitable buildings begun. A little more than a decade later, Leo X., another one of the misunderstood Popes, came to the conclusion that the two universities in Rome, that of the Papal Court and that of {232} the City, would do better work if combined into one, and accordingly this combination was effected. This made provision for one very strong teaching faculty in Rome. The final steps for the completion of the union of the two universities were taken by Pope Alexander VII., and the buildings which the new university was to occupy were finished in a manner worthy of the great institution of learning which it was hoped to create in Rome. The first of the great professors who made the Papal Medical School famous was Realdo Colombo, often spoken of as Columbus simply, who was invited to teach in Rome by Pope Paul III., the same Pope who issued the bull founding the Jesuits. Some people might consider the two actions as representing contrary tendencies in education, but they are not such as know either the history of the Jesuits, or of the constant endeavor of the Popes to foster education. Columbus came to Rome, as we have said, with the prestige of having succeeded Vesalius at Padua, and later having been specially tempted by the reigning prince in Pisa, who wanted to create a great medical school in connection with his university in that city, which he was at that moment trying to raise to distinction, to accept the professorship of anatomy there. Vesalius was still alive at this time, and the period when, if we would credit certain historians who emphasize the opposition between the Church and science, it was dangerous to dissect human bodies had not yet passed. It is interesting to read the account of Columbus's reception in Rome, and the interest manifested in his work by all classes in the Roman University at this time. His course in anatomy was so enthusiastically {233} attended that, as he himself tells in a letter to a friend, he often had several hundred persons in his audience when he gave his anatomical demonstrations on the cadaver. These were not all medical students, but many of them were ecclesiastics, and some of them important members of the hierarchy. Even cardinals manifested their interest in anatomy, and occasionally attended the public dissections--public, that is, as far as the University is concerned--which were made by Columbus.