id: https://nde.nl/ontology/hc/class/KeyDate
name: key_date_class
title: KeyDate Class
prefixes:
  linkml: https://w3id.org/linkml/
  hc: https://nde.nl/ontology/hc/
  schema: http://schema.org/
default_prefix: hc
default_range: string
imports:
  - linkml:types
  - ../metadata
  - ./SpecificityAnnotation
  - ./TemplateSpecificityScores
  - ../slots/specificity_annotation
  - ../slots/template_specificity

classes:
  KeyDate:
    class_uri: schema:Event
    description: |
      A significant historical date with event description.

      Used for key_dates within TemporalCoverage.
    attributes:
      date_value:
        description: ISO 8601 date (YYYY-MM-DD or YYYY)
        range: string
        required: true
        aliases:
          - date
      event:
        description: Description of what happened (Dutch or original)
        range: string
        required: true
      event_en:
        description: English translation of event description
        range: string
    slots:
      - specificity_annotation
      - template_specificity
    slot_usage:
      specificity_annotation:
        range: SpecificityAnnotation
        inlined: true
      template_specificity:
        range: TemplateSpecificityScores
        inlined: true