therly love)Storge (familial love)Filial pietyPolyfidelityHolidaysMother's DayU.S.Father's DayFather–Daughter DaySiblings DayNational Grandparents DayParents' DayChildren's DayJapanFamily DayCanadaAmerican Family DayInternational Day of FamiliesNational Family WeekUKNational Adoption DayRelatedSingle parentOnly childWedding anniversaryGodparentSociology of the familyMuseum of MotherhoodAstronaut familyIncestDysfunctional familyvteParentingKinship terminologyParentMotherFatherAdoptiveAlloparentingCoparentingExtended familyFoster careKommune 1NoncustodialNuclear familyOrphanedShared parentingSingle parentBlended familySurrogacyIn loco parentisTheories • AreasAttachment theoryApplied behavior analysisBehaviorismChild developmentCognitive developmentDevelopmental psychologyHuman developmentLoveMaternal bondNature versus nurtureParental investmentPaternal bondPediatricsSocial psychologyStylesAttachment parentingBaby talkBud