Sistine Chapel the chapel was decorated with frescoes by a number of the most famous artists of the High Renaissance, including Sandro Botticelli, Domenico Ghirlandaio, Pietro Perugino, and Michelangelo. The first mass in the Sistine Chapel was celebrated on 15 August 1483, the Feast of the Assumption, at which ceremony the chapel was consecrated and dedicated to the Virgin Mary. The Sistine Chapel has maintained its function to the present day, and continues to host the important services of the Papal Calendar, unless the Pope is travelling. There is a permanent choir, the Sistine Chapel Choir, for whom much original music has
Sistine Chapel layer of animal glue and "lamp black", all of the wax, and all of the overpainted areas were contamination of one sort or another: smoke deposits, earlier restoration attempts, and painted definition by later restorers in an attempt to enliven the appearance of the work. Based on this decision, according to Arguimbau's critical reading of the restoration data that have been provided, the chemists of the restoration team decided upon a solvent that would effectively strip the ceiling down to its paint-impregnated plaster. After treatment, only that which was painted "buon fresco" would remain. The only reproduction of the Sistine