Sistine Chapel ceiling from the early church, the ceiling also has elements that express the specifically Renaissance thinking that sought to reconcile Christian theology with the philosophy of Renaissance Humanism. During the 15th century in Italy, and in Florence in particular, there was a strong interest in Classical literature and the philosophies of Plato, Socrates and other Classical writers. Michelangelo, as a young man, had spent time at the Humanist academy established by the Medici family in Florence. He was familiar with early Humanist-inspired sculptural works such as Donatello's bronze "David" and had himself responded by carving the enormous nude marble "David", which
Sistine Chapel congregations. These included the Christmas Day and Easter masses, at which the Pope himself was the celebrant. The other 27 masses could be held in a smaller, less public space, for which the "Cappella Maggiore" was used before it was rebuilt on the same site as the Sistine Chapel. The "Cappella Maggiore" derived its name, the Greater Chapel, from the fact that there was another chapel also in use by the Pope and his retinue for daily worship. At the time of Pope Sixtus IV, this was the Chapel of Pope Nicholas V, which had been decorated by Fra Angelico.