Gregorian calendar (for Western churches)

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:event
gptkbp:adoptedBy	gptkb:France gptkb:Italy gptkb:Poland gptkb:Portugal gptkb:Spain Catholic Church most Protestant churches
gptkbp:alsoKnownAs	Western calendar
gptkbp:basisFor	modern civil calendar
gptkbp:compatibleWith	gptkb:Eastern_Orthodox_churches gptkb:Greece_(until_1923) gptkb:Russia_(until_1918)
gptkbp:epoch	gptkb:Anno_Domini_(AD)_era
https://www.w3.org/2000/01/rdf-schema#label	Gregorian calendar (for Western churches)
gptkbp:introduced	gptkb:Pope_Gregory_XIII
gptkbp:introducedIn	1582
gptkbp:length	leap year every 4 years except years divisible by 100 unless also divisible by 400
gptkbp:namedAfter	gptkb:Pope_Gregory_XIII
gptkbp:purpose	correct drift in Julian calendar
gptkbp:replacedBy	gptkb:Julian_calendar
gptkbp:structure	12 months 365 days (common year) 366 days (leap year)
gptkbp:usedBy	gptkb:Western_Christian_churches
gptkbp:usedFor	liturgical purposes determining Easter
gptkbp:usedIn	most of the world today
gptkbp:bfsParent	gptkb:Paschal_Canon
gptkbp:bfsLayer	8