On 17 February 1600 in Piazza Campo de’ Fiori in Rome, a philosopher, theologian and Dominican monk was burned alive on charges of heresy by the Holy Inquisition. It was Giordano Bruno, a Copernican. He was declared heretic because he was denying the eternal damnation, the Trinity, the divinity of Christ, the virginity of Mary, and transubstantiation. He was also a convinced believer in the fact that the Universe was infinite, that the stars were suns like ours around which planets revolved like in our solar system. These and many other ideas considered heretical were written in several books, such as On the infinite, universe and worlds; The Ash Wednesday Supper; Cause, Principle, and Unity, etc.