Sistine Chapel ceiling of the Sistine Chapel. At the outset, the plaster, "intonaco", began to grow mold because it was too wet. Michelangelo had to remove it and start again. He then tried a new formula created by one of his assistants, Jacopo l'Indaco, which resisted mold and entered the Italian building tradition. Because he was painting "fresco", the plaster was laid in a new section every day, called a "giornata". At the beginning of each session, the edges would be scraped away and a new area laid down. The edges between "giornate" remain slightly visible; thus, they give a good idea of
Sistine Chapel Rome by mercenary forces of the Holy Roman Empire in 1527, and the Council of Trent which commenced in 1545. The work was designed on a grand scale, and spans the entire wall behind the altar of the Sistine Chapel. The painting depicts the second coming of Christ on the Day of Judgment as described in the Revelation of John, Chapter 20. High on the wall is the heroic figure of Christ, with the saints clustered in groups around him. At the bottom left of the painting the dead are raised from their graves and ascend to be judged. To