The differences between Luther and the Catholic Church administration shaped the Catholic Church reforms in the 16th century. It was mainly between Pope Leo X, who was born Giovanni. The latter was born from a prestigious de Medici family. The Pole loved Art, and he initiated a mass project to beautify the Vatican. To do so, he encouraged the big sales of indulgences. This aroused Martin Luther, and he was against it. Additionally, Luther wrote to criticize nepotism, corruption, and the sale of indulgences. He was against these Catholic Church practices and rituals, which were not supported by the Bible. He was asked to recant the pamphlet, but he refused; this led to his ex-communication from the Catholic Church on