Speculum perspicuum uranicum, or, An almanack for the year of Christ, 1681 : being the first after the bissextile or leap-year, and from the creation of the world 5630 years since [brace] the death of our Savior 1648 years, the conquest of William Duke of Normandy 615 years, the flood of Noah 3974 years, the restauration of King Charles II 21 years, London was burned 15 years : wherein is contained a true description of the year ... calculated for the meridian of the ancient and famous city of London ... /