Pope Urban VIII had earlier asked Galileo …
Years: 1633 - 1633
Pope Urban VIII had earlier asked Galileo personally to give arguments for and against heliocentrism in the book, and to be careful not to advocate heliocentrism.
He had made another request, that his own views on the matter be included in Galileo's book.
Only the latter of those requests was fulfilled by Galileo.
Simplicio, the defender of the Aristotelian Geocentric view in Dialogue Concerning the Two Chief World Systems, is often caught in his own errors and sometimes comes across as a fool.
Indeed, although Galileo states in the preface of his book that the character is named after a famous Aristotelian philosopher (Simplicius in Latin, Simplicio in Italian), the name "Simplicio" in Italian also has the connotation of "simpleton."
This portrayal of Simplicio made Dialogue Concerning the Two Chief World Systems appear as an advocacy book: an attack on Aristotelian geocentrism and defense of the Copernican theory.
Unfortunately for his relationship with the Pope, Galileo put the words of Urban VIII into the mouth of Simplicio.
Most historians agree Galileo did not act out of malice and felt blindsided by the reaction to his book.
However, the Pope does not take the suspected public ridicule lightly, nor the Copernican advocacy.
Galileo has alienated one of his biggest and most powerful supporters, the Pope, and is called to Rome to defend his writings.
With the loss of many of his defenders in Rome because of Dialogue Concerning the Two Chief World Systems, Galileo is ordered to stand trial on suspicion of heresy in 1633.
The sentence of the Inquisition was in three essential parts:
* Galileo is found "vehemently suspect of heresy," namely of having held the opinions that the Sun lies motionless at the center of the universe, that the Earth is not at its center and moves, and that one may hold and defend an opinion as probable after it has been declared contrary to Holy Scripture; he is required to "abjure, curse and detest" those opinions.
* He is sentenced to formal imprisonment at the pleasure of the Inquisition; on the following day this is commuted to house arrest, under which he will remained for the rest of his life.
* His offending Dialogue is banned; and in an action not announced at the trial, publication of any of his works is forbidden, including any he might write in the future.
