Galileo Receives Inquisition Warning on Heliocentrism
In the early 17th century, the Roman Catholic Church upheld a geocentric model of the universe based on interpretations of scripture and Aristotelian philosophy. Galileo Galilei, an Italian astronomer and mathematician, had been advocating the Copernican heliocentric system through his observations and writings, including his support for the idea that Earth orbits the Sun. Tensions escalated when his ideas were examined by church theologians in Rome. On February 26, 1616, Cardinal Robert Bellarmine summoned Galileo and formally warned him to abandon the Copernican doctrine, instructing him neither to hold, teach, nor defend it in any manner. An additional precept from the Inquisition commissary reinforced this order under threat of further action. Galileo complied outwardly at the time but continued private...