Italian Renaissance painting
In 1508 Pope Julius II succeeded in getting the Florentine sculptor Michelangelo (1475-1564) to agree to continue the decorative scheme of the Sistine Chapel. The Sistine Chapel ceiling was constructed in such a way that there were twelve sloping pendentives supporting the vault that formed ideal surfaces on which to paint the Twelve Apostles. Michelangelo soon devised an entirely different scheme, far more complex both in design and in iconography. The scale of the work, which he executed single handed except for manual assistance, was titanic and took nearly five years to complete.
Medici Chapel
In a statement in the Michelangelo's biography published in 1553 by his disciple, Ascanio Condivi, and largely based on Michelangelo own recollections, Condivi gives the following description: "The statues are four in number, placed in a sacristy . . . the sarcophagi are placed before the side walls, and on the lids of each there recline two big figures, larger than life, to wit, a man and a woman; they signify Day and Night and, in conjunction, Time which devours all things… And in order to signify Time he planned to make a mouse, having left a bit of marble upon the work (which [plan] he subsequently did not carry out because he was prevented by circumstances), because this little animal ceaselessly gnaws and consumes just as time devours everything”.