Thanks for pointing to that link! It shows how utterly wrong you were to link "philosophy=religion" when referring to Bacon.
"Natural philosophy was the term whose usage preceded our current term science in the sense that prior to the replacement of the term "natural philosophy" with the term science, the term science was used exclusively (and comparatively rarely) as a synonym for knowledge or study and when the subject of that knowledge or study was 'the workings of nature', then the term "natural philosophy" would be used."