The study deals predominantly with basic questions of Historical Demography that have so far not yet been tackled, as no adequate sources seemed to exist, or the effort for digging into these problems seemed outrageous. Many major gaps are filled in this study, based on two types of sources: 14 census-like nominal population listings for 126 parishes of the Zurich countryside, complemented by 52 parishes of adjacent areas, and four reconstituted communities with very early parish books. This allowed coming up with detailed population structures by year of age, sex and marital status for...