Category:Calendar reform
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significant revision of a calendar system  | |||||
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Subcategories
This category has the following 3 subcategories, out of 3 total.
Pages in category "Calendar reform"
This category contains only the following page.
Media in category "Calendar reform"
The following 4 files are in this category, out of 4 total.
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Ano1582.jpg 1,038 × 861; 175 KB
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Hanke-Henry Calendar.png 2,550 × 3,300; 773 KB
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HHCalendar.png 1,097 × 573; 68 KB
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Julian to Gregorian Date Change.png 887 × 468; 45 KB
