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
Illusionistic ceiling painting sotto in sù". This was the prototype of illusionistic ceiling painting that was to become an important element of Italian baroque. Correggio at Parma took the illusionistic ceiling a step farther in his frescoes of Christ and the Apostles for the cupola at the San Giovanni Evangelista and in the "Assumption of the Virgin" in the dome of the Cathedral of Parma, which is Correggio's most famous work (1520–24); in these frescos Correggio treats the entire surface as the vast and frameless vault of heaven in which the figures float. In a visual continuity between the architectural interior and its