William Ramesey had this to say about the Jupiter-Saturn conjunctions. This is a selection from my book, Astrology of Sustainability (2011; Schiffer Press: Atglen, PA), and includes my commentary on the passage.
The 1653 work, Astrologia Restaurata, by William Ramesey (1627-1675/6) is the first comprehensive work on mundane astrology published in English.1 It follows the structure of Bonatti quite strongly, even preceding the section on mundane with a section on electional, just as Bonatti had done with Treatises 7 and 8. One component of the earlier systems which has become vestigial by Ramesey's day is the location system of climata. Perhaps the discovery of the New World as well as Asian and Pacific exploration made the old system seem naively stunted as it defined a center of civilization that simply no longer applied. This would only be replaced wholesale in the modern period by new systems of pinpointing locations. But even by Ramesey's time, the climata were not strictly necessary, since Aries Ingress charts could be run for multiple locations. In any case, they had developed lists of countries and cities that were ruled by particular signs, and these listings had replaced the climata, although it remains to be determined how much of the lists had in fact been derived from them.