 Methodological naturalism is a recent development in the history of science, though we can see precursors of it in medieval authors such as Aquinas who attempted to draw a theological distinction between miracles, such as the working of relics, and unusual natural phenomena, such as magnetism and the tides (see Perry &amp; Ritchie 2018). Natural and experimental philosophers such as Isaac Newton, Johannes Kepler, Robert Hooke, and Robert Boyle regularly appealed to supernatural agents in their natural philosophy (which we now call “science”). Still, overall there was a tendency to favor naturalistic explanations in natural philosophy. The X-club was a lobby group for the professionalization of science founded in 1864 by Thomas Huxley and friends. While the X-club may have been in part motivated by the desire to remove competition by amateur-clergymen scientists in the field of science, and thus to open up the field to full-time professionals, its explicit aim was to promote a science that would be free from religious dogma (Garwood 2008, Barton 2018). This preference for naturalistic causes may have been encouraged by past successes of naturalistic explanations, leading authors such as Paul Draper (2005) to argue that the success of methodological naturalism could be evidence for ontological naturalism. 