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gptkbp:instanceOf
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gptkb:annual
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gptkbp:alsoKnownAs
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leap year
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gptkbp:Chinese_calendar_extra_month
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gptkb:leap_month_(run_yue)
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gptkbp:defines
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a year with an extra day or month inserted to keep the calendar year synchronized with the astronomical or seasonal year
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gptkbp:example
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2012
2016
2020
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gptkbp:feature
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contains an extra day or month
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gptkbp:frequency_in_Gregorian_calendar
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every 4 years, except years divisible by 100 but not by 400
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gptkbp:Gregorian_calendar_extra_day
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February 29
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gptkbp:Hebrew_calendar_extra_month
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gptkb:Adar_II
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gptkbp:introducedIn
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gptkb:ancient_Egypt
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gptkbp:Julian_calendar_extra_day
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February 29
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gptkbp:purpose
|
to correct discrepancies between calendar and astronomical year
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gptkbp:relatedConcept
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gptkb:leap_day
leap month
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gptkbp:usedIn
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gptkb:Gregorian_calendar
gptkb:Hebrew_calendar
gptkb:Islamic_calendar
gptkb:Julian_calendar
gptkb:Chinese_calendar
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gptkbp:bfsParent
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gptkb:Leap_Year
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gptkbp:bfsLayer
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6
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https://www.w3.org/2000/01/rdf-schema#label
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Intercalary year
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