KnowraGregorian calendarLinked fromLinked fromThe 91 pages that link to Gregorian calendar, each with the reason it gives.All 91Broader topic 9Related 34Narrower topic 15Compared with 33Lunar calendarBroader topic: Its fixed seasonal structure contrasts with dates that follow lunar months.IntercalationBroader topic: Its leap-year rule is a familiar day-based intercalation system.CalendarBroader topic: Its century-year exceptions limit the drift inherited from the Julian calendar.Lunisolar calendarBroader topic: It illustrates a solar solution to seasonal drift that does not add lunar months.Pope Gregory XIIIBroader topic: Gregory’s most enduring reform replaced the Julian calendar across much of the world.Calendar reformBroader topic: Its adoption is the best-known correction of accumulated calendar drift.Solar calendarBroader topic: Its leap-year rule approximates the tropical year more closely than the Julian rule.Christopher ClaviusBroader topic: This reform was the central subject of Clavius’s explanations and defenses.History of calendarsBroader topic: Its reform corrected accumulated seasonal drift with a more accurate leap-year pattern.