Several years ago I bought myself a post-WWII era copy of Hanmerton’s “Practical Knowledge For All” - the English encyclopaediast had edited together 50 educati

Several years ago I bought myself a post-WWII era copy of Hanmerton’s “Practical Knowledge For All” - the English encyclopaediast had edited together 50 educational courses in a set of 6 books. I love immersing myself in both the content and the historical context of the lessons. Back then, Jupiter had 11 moons and Saturn had 9 “plus the doubtful Themis” which was discovered by an American astronomer in 1905 but never seen again…