| 1. | Why are leap years ( intercalary years ) called leap years?
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| 2. | Xanthicus shall have 32 days in this intercalary year ."
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| 3. | The calendar seems to have employed several schedules to determine which of the 19 years will be intercalary years.
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| 4. | There is another theory which says that in intercalary years February had 23 or 24 days and Intercalaris had 27.
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| 5. | Mart . " were dates in late February in regular years, but were a month later in intercalary years.
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| 6. | However, the sources rarely reveal which years were regular, which were intercalary, and how long an intercalary year was.
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| 7. | The remainder, if tallies with the set sequence number of the prevailing Metonic cycle, then it will be an intercalary year.
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| 8. | The Qu'ran makes it clear that in intercalary years the number of months was expanded from its usual twelve ( see next section ).
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| 9. | Mart . ", normally referring to the end of February, were in intercalary years the concluding days of the " mensis intercalaris ".
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| 10. | The intercalary years are numbers 3, 6, 8, 11, 14, 17 and 19 . Both the Hebrew calendar and the Julian calendar use this sequence.
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