Linked from

The 14 pages that link to Calendar reform, each with the reason it gives.

• Gregorian calendarNarrower topic: The Gregorian transition became a major example of reform constrained by politics and tradition.

• Julian calendarRelated: Accumulated seasonal drift eventually prompted reform of the Julian calendar.

• Lunar calendarRelated: Reforms have changed how lunar calendars handle month starts and seasonal alignment.

• ChronologyRelated: Reforms can create discrepancies between dates recorded under different systems.

• IntercalationRelated: Revising intercalation rules can correct drift without replacing the entire calendar.

• CalendarRelated: Reforms reveal the practical and political costs of changing shared date systems.

• Rudolphine TablesRelated: Reliable solar predictions supported the broader work of aligning calendars with the heavens.

• Astronomical tablesRelated: Solar tables informed reforms intended to keep calendar dates aligned with the seasons.

• Copernican systemRelated: More accurate solar parameters associated with Copernican astronomy informed later calendar calculations.

• John DeeRelated: Dee advised on calendar reform and the astronomical basis of timekeeping.

• Public holidayRelated: Calendar changes can shift the dates on which public holidays are observed.

• Guo ShoujingRelated: The Shoushi calendar translated Guo’s measurements into a practical system of public timekeeping.

• Holocene calendarNarrower topic: The proposal belongs to efforts to reshape how societies organize historical time.

• Juche calendarRelated: The Juche system entered official use through North Korea’s calendar policy.