Formula Calendarii Novi (1613)

""Formula Calendarii Novi"" est opus magnum Sethi Calvisii, mathematici et theologi Germanici, quod anno MDCXIII editum est. In hoc libro, Calvisius systema calendarii novi describit, quod anno MDCXVI auctoritate papae Gregorii XIII institutum est. Calvisius non solum calendarii novi rationem explicat, sed etiam historiam et rationem calendarii veteris, quod in Ecclesia Romana usque ad saeculum XVI viguit, tractat. Hoc opus est utilissimum ad intellegendum tempus et festa in Ecclesia Romana celebrata.This Book Is In Latin.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.