How was the dome at the Cathedral of Florence built?

Answer 1

The Cathedral is the product of many artists that worked on it for various centuries. In 1294 the Corporation of the Guilds commissioned Arnolfo di Cambio to build the new cathedral that was to replace the church of Santa Reparta. A workshop grew up around and inside the church that would be used for decades until 1375. Work began on Sept. 8, 1296. The dome had to wait until 1420 when Brunelleschi won the competition for the building of his structure. In 1434 it was stopped and 2 years later the church was consecrated 140 years after it was begun. The lantern was started in 1445 and finished in 1461 with the golden sphere. The facade is in 19th century Gothic style. The artist proposed the airy dome without the use of fixed centering by using ribbing with beams and bricks set in herringbone patterns, a double shell for the dome with an ogive form on a tall drum. The interior was frescoed by Vasari and Zuccari (1572-1579)