KnowraCalendar eraLinked fromLinked fromThe 6 pages that link to Calendar era, each with the reason it gives.All 6Related 3Narrower topic 3Gregorian calendarNarrower topic: The reform changed dates and leap rules, but retained the prevailing year numbering.Common EraNarrower topic: Common Era is one widely used era among systems anchored to different epochs.Juche calendarNarrower topic: Juche is one example of dating years from a politically selected epoch.